I actually had it on my phone back in Feb. It wasn't awful. The lack of 3G data was all that got it removed and android put back on... for now, but I'll probably go back to it once I can get 3G data. I might miss my exchange calendar support, but I doubt that'll be long in appearing (who knows, I might even do that).
But I'm not a big app'er. I need a phone dialer, a tiny bit of sms, a web browser, gchat client, and preferably my corp exchange calendar (email optional). Gmail would be nice too but the browser version would fake it.