I’ve been using Microsoft products since the early days of DOS, and the only product that truly impressed me was NT; it was a breath of fresh air as a developer, with its new kernel and much improved stability. Finally, we could develop for windows and not have the OS crash!
Everything else has driven me nuts, and their quality had definitely gone drastically down hill. Their software now is a bloated mess of ugly, especially windows. How did we get to an OS that installs so many gigs of files? Holy crap!