<p>New Haven is easily one of the best college towns on the East Coast, although it is not your traditional "college town". It used to not be so great, so there are definitely people around who still like to put it down (many of them from rival schools, actually). But, the downtown area - which wraps around the Yale campus - is remarkably gentrified now, and many people call it a miniature version, or a neighborhood, of New York City. There are million-dollar condominiums and thousands of luxury apartments that are under construction and recently completed, many 24 hour stores, tons of nightlife, and even a new 7-screen movie theater. For the 50,000 or so college students in the area (Yale isn't even the largest university in New Haven - CT's largest public university is), it's the only place to be on a Friday or Saturday night, and the area right by Yale is packed with so many students that you can't walk down the street. In terms of other young people, I actually know a bunch of Cornell graduates who live in New Haven proper, and work for various engineering firms or large aerospace companies about a half hour drive from the city. They do the reverse commute because New Haven is by far the most happening place in Connecticut.</p>
<p>I think people are drawn to the area because of the combination of city life, and all the cultural activities going on at the Yale campus, including over 1,000 annual concerts, events and shows just at the Yale school of art, school of music, drama school (which itself has 5 theaters) and architecture school. Most of these events are free. It really is a cultural mecca. In recent years, hundreds (yes, literally hundreds) of new restaurants, stores, art galleries, bars, 24-hour diners, clubs and the like have moved in, and sidewalk cafes are now sprouting up pretty much everywhere. Because of all this activity, it is very safe and walkable. </p>
<p>Yale is unique in the sense that it is one of the only schools in the world that is at the exact center of its host city. The City Hall, which employs hundreds of people including many Yale students studying how government works, is right across the 400-year-old town green from the freshman dormitories. There are tens of thousands of office workers, plus public libraries, courthouses and all sorts of other businesses right around the town green. The Yale Medical School and hospital is a few blocks from the central campus, unlike most of the other top universities in the world, making it very easy for students to walk there and work on research projects. The medical center has spun of dozens of new biotechnology companies into local office buildings, which have brought in billions of dollars in investment - one of the main reasons why so much revitalization has occurred. It also creates a great synergy for the town, because the streets are flowing with Ph.Ds, doctors and medical workers during lunch time. All in all, the combination of college town life and campus life is great - since the college is at the center (kind of like Oxford, if you're ever lucky enough to visit Britain), the life of the town does not detract from Yale's campus life, which is amazing - visit for a few classes and a weekend when school is back in session, and you'll see no place else really compares.</p>
<p>You also asked what are the worst things about New Haven. Despite New Haven's status as one of the great college towns in the country, and one with a thriving downtown and many wealthy neighborhoods (including some that are full of gourmet grocery stores and very, very rich people), it obviously has poor neighborhoods just like any other major city. It's not as poor as most other major cities, but clearly there is a proportion of the population that lives in relative poverty, which is a challenge for any city to grapple with. Luckily, Connecticut is a very liberal state and redistributes wealth accordingly, so there aren't any desolate, boarded-up, "disinvested" areas like the ones that you find in cities in the Midwest, or even closer places like Providence and Syracuse. Anyhow, Yale students, and most New Haven residents, typically do not go through all the poor neighborhoods on a regular basis. But if you're used to a quiet suburb, New Haven has about the same ethnic makeup as New York City, and there is a learning curve for living in a city as well as learning how different groups interact with each other. Differences cause tension in cities - even though they also contribute to fantastic local culture and exciting points of view - and that can lead to conflict. For example, there are Puerto Ricans living in New Haven who resent that fact that many Mexicans, Asians and South Americans are pouring in to take advantage of the very low unemployment rate. Of course, that really applies to all cities in general. Other than that, the biggest complaints you might hear from other people might have to do with weather and access to camping areas. I wouldn't say weather is a downside, because New Haven, being on the coast, actually has a very moderate climate, and is pretty warm even in the winter. If you're used to San Diego or New Orleans, obviously it is a change, but that's more a matter of personal preference. I know many people who think New Haven is too hot in the summer and refuse to live south of Maine! As far as camping areas go, New Haven is obviously not in the middle of the boondocks where you can camp basically behind your house, but relative to any other major city, it is in a really good situation - since it's not surrounded by endless urban sprawl like other cities, it is very easy to drive 10 minutes and get out to the countryside. There are great camping and hiking areas right around the city. You can even take your bicycle, ride along the coastline from downtown New Haven, and be on a beautiful oceanside beach in just about 20 minutes. There used to be other things that would make this list, such as the lack of a supermarket or theater downtown, but lately those things have been added as part of the massive revitalization taking place in the area.</p>
<p>As far as your other question goes, air pollution is not any more of an issue than anywhere else on the East Coast, though New Haven does have an active environmentalist community (just as you have in other liberal cities such as New York and Boston) that tries to blame everything on the air pollution that is there. I've lived for periods of time in New York, Los Angeles and elsewhere, and every time I go through New Haven it's like being in a mountain resort, the air seems so clear. Of course, it's relative, so if you're used to Vermont you might notice some ozone pollution on the worst days in the summer. There are a few localized pollution sources (mainly the ships sailing into the harbor, and the highways in the area), but none of them are close to the downtown area or the Yale campus.</p>