I have a few friends that work there. They are happy, but they say that the company lacks any sense of urgency. After Maritz left and more recently Steve Herrod, there seems to be a dearth of really brilliant and inspirational people in the top positions. A lot of great engineers were lost after the 4 year post-IPO options expiration came due last year. As well, there is a lot of middle management, and lots of politics, and apparently lots of fat-cat principal engineers that stick around and do not very much.
All of this spells a recipe for stagnation. The debacle over the last year or so with licensing only cemented the idea that ESX is expensive, and Hyper-V is getting to "good enough" status.