Overall, I love what they did with Nigh City and the Cyberpunk universe! Although it has some bugs right now, I'm confident (like with Witcher 3) CDPR will take care of it and make the game more optmized.
I'm giving a 5 star because so far it's been totally a fun experience. I got 60 odd hours of game played and and still in Act 2 in the main Quests. Driving is great and it's immersive.