Am currently working in IBM and what I enjoy the most would be the
1. Flexibility - If I work late last night, I'll probably go into office later than usual the next day; Work from home. (This would have to be discussed with your manager)
2. Role Change - Change to a different role/position around every 2 years so you can break routine and learn new things
3. Global exposure - Can deal with people from different countries and seniority; It's interesting to see how they sometimes view things differently from us.

Depending on which department you're in , culture might differ a bit.
Fresh grad pay wise, I wouldn't say its that great or that bad as well if I compare with other companies outside.