I played for 35 hours and the only bugs were typical gamebryo bullshit that were in Fallout 3. I think people are blowing it out of proportion because it's obsidian.
As expected, the reviews are filled with "hurr durr Bethesda's game is better" while pointing out every flaw that they seemed to miss in Fallout 3. It's all nonsense.
He was level 2 or 3 and the enemies in Primm seem to be a bit stronger than that. They nearly wrecked his shit a few times, he had to run outside and pop tons of water and stimpacks.
I expect a few glitches like that. Fallout 3 had a few of them. The auto-axe would go invisible sometimes. Let's just hope there's no quest glitches, those are the worst.