I'm going to give it a little more time, but right now I am a little concerned. My battery went from full to empty during the night and all I had open were two Firefox tabs. Battery also went dry during some light evening surfing yesterday, so this is twice Firefox has emptied my battery even though it came out just half a day ago!

I love the interface though, but people calling it slower than Microb are right. It's sluggish as hell when you're loading a page.