I’m using Windows 7. Looks pretty good. Free download and activation key which will keep it free until next March when it will start to shut down and then stop next June. But you can buy it now for $49.95. Takes a while to download and burn an ISO disk but it’s pretty straight forward. Go for it.
Downloaded 3.5 yesterday, definitely faster for me. Only had to upgrade one plug-in and it works like a charm. I prefer 3.5 over 3.0. It hasn’t crashed yet :-)