Another not so hot review of Vista. This is from C-Net
The good: Windows Vista Ultimate does improve some features within Windows XP; fewer system crashes than Windows XP; Windows Vista offers better built-in support options.
The bad: Windows Vista Ultimate does not put Search on the desktop (it’s buried within applications, within the Start Menu); optimized only for the Microsoft Windows ecosystem (for example, RSS feeds from Internet Explorer 7 get preferential treatment); there’s simply too much and not all of it is implemented properly; no new software yet written exclusively for Windows Vista; and there are too many editions of Windows Vista.
The bottom line: Windows Vista is essentially warmed-over Windows XP. If you’re currently happy with Windows XP SP2, we see no compelling reason to upgrade. On the other hand, if you need a new computer right now, Windows Vista is stable enough for everyday use.