IBM summer internship experience

<p>Can someone who's interned at IBM comment on their experience. Things like how much time you put in - was it basically 9-5 or did you burn a lot of midnight oil, either because you wanted to take advantage of the opportunity, or if were expected to. Were there a lot of other interns in a similar position that you interacted with both during and after work, or were you primarily with employees? What did you do after work - just socialized or did something at a local Univ? Any first hand experience with their operations in Austin, North Carolina research triangle park, or Lexington MA, or Bangalore/India, for that matter?<br>
My S, soph in computer science has had several interviews that seem to be going well but would like some advice to make an informed decision.</p>