After pumping god knows how many hours into this game, I have to say it's probably the best game I've ever played now. Combat feels really tight once you get used to it, story is pretty solid, side quests are amazing...
And I love the fact that it feels like you're thrown into the world, instead of it growing with you like in something like Skyrim (which I hated), lost count of the amount of times I was a low level player then strolled into a field or forest and came across a monster that was a level 25+, and that they're still beatable IF you fight intelligently.
Unfortunately, the crashes on my PS4 have been more frequent as the game has gone on, crashed on me 4 times yesterday. Hopefully that gets resolved in the upcoming patch.
I'm now at level 24 currently, spent way too much time with it on the weekend.