Pros
Its a good learning curve for new college graduates. I think the environment is so accepting of people who would normally never be given an opportunity to work in IT a chance ( I am only referring to the US hiring program, and I know the Indian hiring process is a lot more demanding) . Now, to say thats a great thing for the client to have a lot of inexperience onsite people.. meh, whatever, it gave me a good job to learn a lot of job skills for the first 2 years. However, if you planning to focus on something that will interest you in that area.. time to move on.
Cons
I felt really isolated in the company; that was my biggest complaint. I think the big reason was the nature of my project and being an american hire. So, instead of feeling part of something bigger, my world was my cube and I didn't even see other infosys people most of the time! Maybe once in awhile when my manger tells me to take irrelevant certifications, turn in my time sheet and join a weekly team call to hear other infosys talk about thier work that was completely not related to mine.