I sure like what I am running, ...it is the pre release version but the 3-D effect is WOW! and I am finding the "cube" to be very useful!
It is not , however for older boxes....lot's of the linux distros would likely do much better....
You do need a video card that has 3-D ability!
I am running the 64 bit version,...so there are somethings I am missing like Flash....