Pretty cool, although I never really did care about boot time myself, or all the bells and whistles like aero or any of that. I prettymuch disable everything I can, and save my PCU for my CGI and graphics programs. I just care about stability and my programs running smoothly. I probably won't be switching anytime soon, because that usually means getting all new programs because the upgrades screw with compatability all the time
Boot time don't affect me much, because the only time my computer is really off is during power outages lol. I never have it hibernating, always have it rendering or doing something usually.
