I LOVE my EVO. Absolutely LOVE.
The shift was nice...& a bit smaller but I chose the EVO only b/c it has the better camera. & seriously, it takes DAMN good pics :-)
I have the shift. The camera isn't quite as good as the EVO, but it's still takes really good pictures. I love the camera and web surfing ease (I love being able to stretch/shrink pages, etc). The sound quality of the phone is good too. So for personal use, it's great.
I'm not so thrilled using it for business as you need a huge app to connect to an Exchange Server (well, I do anyway due to security - not sure if that's true for all companies). The app makes my phone buggy, so I will be getting a blackberry for work and just use the shift for my own use.
I don't have the evo but I work in that industry... it is a great phone, people really love it.
You can get pretty good deals on the EVO now....