Its not out yet. They are still creating driver packages.
As far as being "Worth"
it ? Thats all opinion.
Once it is a public OS, It will come installed on machines that you order.
There is a TON of information on Vista on this forum :
If you don't find what you are looking for in that particular post, feel free to use the search function located at the top of the page and simply input Vista and check them out.