I have used GO Launcher a lot, but I am currently not running it. I have it installed, but it isn't my HOME UI.

I use "Home Switcher" if I want to try one of the other one's I have installed (SPB, Launcher Pro, ADW).

I like how it interfaces with GO SMS Pro (my main texting program)....but what I don't like is that you can't use HTC Widgets. I personally like the GPS On/Off, WiHi On/Off icons. But, other than those little annoyances.....great APP.