Not tried the Studio version specifically, but I guess whether it's better than Vista will depend largely what you want out of an OS.
For almost everything except gaming, I prefer using Linux these days (although in fairness I've not really used Vista very much). Firstly, I like the idea of an OS being free - in both senses of the term - and I find the "community" aspect of Linux to be so refreshing, e.g. the online support forums, the real-life Linux User Groups, etc...
I find that Linux software isn't as commercially-oriented as it is on Microsoft's OSes (that's not to say that there isn't any freeware for Windows, but I find it's not as prolific as it is for *nix).
I also really like the "repository" method of installing software in *nix... which is quite ironic because lots of people used to moan about the difficulties in installing software in Linux - what's so difficult about searching for an app in Synaptic, selecting to install it and clicking Apply..?