Well, I've been playing with it about 3 weeks now. It's growing on me, that's for sure.
Vista's release also happened to coincide with my upgrade pattern (every 2 years or so). Spent odd hours putting together my new PC this weekend. Thing is smoking. I've got an E6300 (1.86ghz) overclocked to 2.8ghz using air cooling and the stock heatsink fan. Can't wait to see how fast I can get this with a really good HSF.