Been using it for a few hours now. I hear a lot of complaints about the address bar having gotten bigger by a whole 10 pixels and the addons bar being gone, but honestly I think it's a great update. On a full hd screen I can't be bothered by the 1.1% increase in height and the addons bar has only annoyed me. Actually, it's a bit ironic to complain about 10px while at the same time complaining about an entire toolbar having disappeared.
It's not ironic at all. People are complaining about adding 10 useless pixels, and about removing a feature they were using, only to save 15 pixels.
Many people liked addon bar, which was hidden by default anyway.
