It was a mess. It works, but it's like they wanted to make Windows 7, but were stuck with some leftover XP assets.
No, I had vista up until recently, it crashed so I had to open my windows 7 and out it in, but in the time I had vista, it was probably the best thing to use for me.
Windows Vista was a slow OS (or it could just be my family cramming a bunch of stealth malware bullstuff on accident).
You probably had a stuffty computer and stuffty software, vista isn't slow.
It's not slow at all, I think it's actually faster and more stable than my XP setup, or my 7 setup.
The default defragmentation tool sucks tits, and you need SP1 to actually run anything, but it's fine as long as it works :)
Vista is a lot faster than XP IMO, and vista was faster than my 32bit windows 7, that's until I got 64 bit, which windows 7 is faster.