Microsoft

Excellent working environment with supremely talented team players. I worked in a role called Escalation Engineering, which is a high-level, customer-facing support role. Microsoft can offer you the ability to work with new technologies extremely early in the product life cycle. My cons are very minor; working at Microsoft was a fantastic experience. I learned a fantastic amount, from how to deal with customers all the way through to how to debug Windows.

It was always very busy, and Microsoft, as a big business, tended to lose focus on its customers.

A crazy over-focus on logging hours spent on multiple support tickets.

Great products, but keep the focus on being the best in services and support because that's what keeps your customers coming back and buying more solutions.