Overall a happy employee
Pros
Although there has been some "brain drain", the overall talent level at IBM is still very high. Even in a very high stress and competitive environment (with layoffs always looming), employees are passionate about their work and supportive of each other. The work can be very exciting if you push to stay in strategic growth areas.
Cons
Company is run by bean counters not visionaries. Bad morale mainly due to upper mgmt's poor direction. The constant layoffs create a specter of uncertainty therefore employees are regularly grooming their resumes and looking for other opportunities (hence you lose the best employees). Lack of resources to deliver with high innovation and solid quality -- whether lack of equipment or always being understaffed.