With a 3.0/1100, you probably won’t gain admission to Chico. All the CSUs except SLO use a simple Index to rank and evaluate candidates. GPA x 800 + SAT - read about it here:
http://www.csumentor.edu/planning/high_school/elig_index_calculator.asp
Assuming your CSU GPA is still close to 3.0, yours is 3500. 3700 is a comfortable score for Chico - though the threshold varies year to year so, you should apply. Sac, Sonoma and SF are less selective and may be worth a look.
My son is a 4th yr Sr Biz major there and on track to graduate on-time. I am there a couple of times a semester so, here are my opinions:
-Is it true that the surrounding area of the school is very rundown?
Old, yes, run down, no. There are RR tracks adjacent and a creek that runs through campus so, there are some homeless/transients around. There is a high concentration of students in the area surrounding the school but, there are also many very nice homes in the area - even a private airport about a mile from campus.
-What is the weather like year round? Is it very cold in the winter?
Summer is pretty hot. Probably 20 days or more with highs in the 100s but pleasant evenings.
Winter is pretty moderate, few hard freezes, not a ton of rain and no snow.
-Is greek life a big part of the campus? What about the parties?
There is an active greek life but, it is probably 15%-20% of the student body. There are several frat/sorority houses just south of campus. The school sits on them pretty hard and they (the houses) are officially dry, So, their parties happen next door or down the street. they aren’t allowed to spill out into the street by Chico PD
-What is the overall feel/look of the campus?
It is a really cool campus with lots of big oaks, a creek flowing through the middle, brick buildings.a rose garden and a manageable student body.
-Is it hard to get into the business major?
Once you are admitted, it is really easy to change majors - my son’s room mate seems to do it every semester.
-Is the school taken seriously? I know it has a party school reputation, but do a lot of people consider Chico to be a joke?
The rep in the business community is solid. Google and other top firms (tech and otherwise) recruit there.