A good game game but still lots of wasted potential. The story is just messy as hell (too much FIB/Merryweather bs instead of focus on real criminal organizations, most heists are underwhelming because you aren't doing it for yourself etc.), physics wise it feels dumbed down from GTA IV and the multiple protagonists system feels more like a cheap gimmick.
It lacks some good meaningful side content as well, f*ck Yoga. The humor feels obnoxious as well at times. The antagonists are some of the worst of the series. Haines is ok (but not that threatening), but Weston, Cheng and Stretch are garbage. Also f*ck what they did to Johnny & co., worst written sh*t I have seen yet in a Rockstar game.
The open world is fantastic though and fun to explore (Rockstar is just superior to everyone else in that regard) and many missions are a lot of fun. And I like Michael and Trevor as the protagonists & their relationship is very well done (carries the story for me). Still hope GTA VI is better..