After a couple of snafus initially, Win7 Pro is running beautifully!
I tried a dual-boot with XP and startup took forever, a minimum of 5 minutes. However, when I made Win7 the sole OS, bootup from scratch takes about 1:20 minutes! Awake from Sleep takes about 15-20 seconds! WOW!
In my opinion, Win7 is the BEST OS released by Microsoft since Win2000. It's incredibly fast and user-friendly, for for a tech-head like me who spends hours at a time tweaking Windows (which, not surprisingly, has resulted in a virtually-innate ability on my part to wipe-and-reinstall-everything in my sleep).
I would say that one of my favorite aspects is the fact that Windows now has built-in features that, in XP, previously required a minimum of 10 third-party utilities. It's about time!!
There are still a few compatibility issues with some of my tech applications (jv16 PowerTools 2009, and 2010 Beta5 will not install, for one), but the pros far outway the cons.