Looks great. The best part was the lighting, and the high detail without lod changes. I knew they were going to open it up at the end, it would be a great way to show that the detail doesn't drop when you get to a bigger map.
This is great detail, and some say "real games won't match it for a while," but I'm not so sure about that. The PS4 UE4 tech demo was surpassed quickly. In fact, I think early gen PS4 games from first party already looked better. Killzone, Second Son, etc. surpassed that quickly. It will all depend on what the first party studios are doing and if they can launch some games early on. That's when we will see this fidelity, and beyond it.