I'm only a few hours in, but aside from the usual weird NPC behaviour this engine is known for I haven't encountered any actual bugs so far.
yeah, the game stinks of gamebryo, but.. I've only had one crash so far.. Who would have that that all it would take to make a less buggy bethesda game was the entire QA department of one of the biggest companies on the planet.
You are missing the very important "so far"
because it has crashed on me many times since that post.