I graduated 2 years ago next month and will say that doing the OMSCS was the best professional decision I've made. There's one unusual thing about my case though: I have a lot of prestige on my resume (Ivy league school, BCG, Google), so I mostly just wanted a) the learning and b) to say I have an MS. I don't know how I would feel about the program if I were more concerned about prestige.
A quick plug for my writeup: http://writing.maxrosett.com/reflections-on-the-georgia-tech...