I would give the game a 8 out of 10.
While there are definitely quite a few bugs (most fix by restarting game), the story is rich and wholesome, the gameplay is pretty great as well. I’ve seen critics of the motorbike handling, but how many complained about the warthog in Halo? It reminds me of the same control. Some of the bugs and features that were pretty annoying were
Quest not updating
Quest updating but not notifying you on map or in journal
Items not able to be picked up
Freakers appearing in front of you
Quest on bikes self completing without actually doing it
Filler mission (serve no purpose to anything)
One of the bases take 60 seconds of driving to get to the center of, after 5 or so times it is really annoying
On the ps4 slim it stutters from time to time.
Even with these rare bugs, the game was extremely enjoyable. I put roughly 40 hours into it before I beat it (I did most side missions and messed with some things)
Edit: I originally rated 8.4 out of 10. After 15 minutes of credits and showing what was unlocked the game force closed and never saved. I now have to repeat the end of the last mission again.