I've been a fan of LauncherPro Plus, and have been using it since shortly after I got my X in July. But I stumbled on Go Launcher over the weekend and decided to give it a whirl. So far, I'm impressed. Slick UI, it's very smooth, and I'm blown away by the ability to add up to 30 screens. The one thing it seems to be lacking is custom widgets (I miss the LPP Facebook widget), but I imagine those will be coming soon. I'm also wondering whether it's a battery hog, since my extended battery life seems to be worse since I installed it -- but that could also be Tasker or one of the other new apps I downloaded yesterday. Still exploring that.
Anyone else using it? Are you liking it more/less than other launchers? Have you found that it uses more battery than others?