I first learned about this game yesterday and inmediately bought it. Here are my impressions:
-the server browser kept bugging out; the buttons illuminated when I moved the cursor over them, but they didn't react to being clicked, and the scroll wheel didn't work either. After sitting there for about four minutes, everything seemed to be normal again, and I could connect to a server.
-walked around a bit, performance on the high graphic preset had some slowdowns on an i5 4690k @ 4 ghz and a slighty factory OC nvidia 970 from Palit.
-after maybe five minutes, I got a CTD.
-started the game again today. Same crap with the server browser.
-joined a low ping official server at western region 1. I spawned inside some kind of compound near a beach that was surrounded by wooden walls. The compound had a graveyard, and there was a tamed T-Rex, some other dino, and two dolphin-like "fishes" that were swimmiing in a part of the place that extended into the sea (but was walled in, too)
There were a few gates and doors in the outside walls, and a huge building in the middle of the compund. All the doors were locked, when I looked at them the game displayed some info regarding who that stuff belonged to, and it said that it could be demolished in 7 days and 23 hours.
There was literally no way to get out of there, so I reconnected and elected to be spawned in some northern area. While the session was loading, I got a black screen and the PC needed to be rebooted, the first game ever where this has happened in on this machine.
Overall, I rate my experience a 2/10.