It's a great tease of demo, I'll say that. It's about 10 minutes of walking and then a small scuffle at the end that lets you play around with all the mechanics.
I really love the contextual stuff - close quarter fights work pretty much exactly like they did in the E3 demo. If you're near a wall Joel will push an enemy into it and slam his fist against their face until they're down, but he might have his back pushed up against that wall a second later. Plus the bricks and bottles that litter the floor give a great sense of dirty, desperate fighting to the proceedings.
Elsewhere, it just kinda seems to be a bit like the Tomb Raider reboot. You collect parts to upgrade weapons and find skill points to improve survival skills. The difference being any inventory stuff is done in real time as Joel looks through his backpack. Hope it manages to separate itself from what's already come this year in that regard.