I guess I got lucky...I haven't had any issues that made the game unplayable. Early on, I had a couple glitches but nothing that a game restart didn't fix.
I don't know how common the bugs were, I got about 50 hours in and finished the main story line before the 1st patch, 5 minutes after 1st patch my map broke which made it almost impossible to play.
This patch has fixed it but I don't see me going back to play the game any time soon since I finished the main story and don't really have the motivation to grind through gut gash and pink eye's threat levels (already did Jeet's), maybe in a few months I might go back to it.