Yesterday I decided to play around with all the big home screen replacements. I tried aHome, OpenHome, PandaHome, GDE, Sweeter Home, and dxTop. I'd rate aHome and dxTop at the head of the list. However, I still went back to Sense. dxTop was nice, but too slow. Noticed a definite speed decrease over Sense. aHome was good, but a lot of widgets I like don't work with it. Sweeter Home has some good potential, but the only themes I could find that I liked were designed for the Droid's high-res screen and don't work right on the Eris.
I was trying to find a reason to switch from Sense, but when it all boiled down to it, I just couldn't find one.
I tried it out for myself as well after asking if you had. I like that it can be used as just an app, and not replace the home screen, but I don't really see [at this point] how this would be beneficial to me...
Thanks for your response!