I'll just copy my comments on item durability from another thread:
One interesting thing I noticed about item durability is that it forces you to make choices about how you want to balance the game.
You can get a fairly powerful (10+ dmg) sword/bow early on, and it seems more durable than the other weaker equips like Boko Clubs and Boko Bows. But...it'll still degrade like everything else. Do you use it on the weaker mobs to make those encounters less dangerous? Do you use it on boss creatures like Steppe Talus to speed up those high-risk encounters? Or do you save it for another area that's higher on the difficulty curve?
I beat Steppe Talus with a 5 dmg sword and a bunch of Boko Clubs, eventually offing it with a Torch. So it's possible that you don't even really need the top gear on an area to beat even the toughest foes...and you might even be wasting its potential on them. This keeps you from getting good weapons early on and just rolling over the entire game with them - they'll all be used up eventually, it's just a matter of when you think you need them - but it still gives you powerful options to make tough battles easier.
This is a little different than a game like Dark Souls which uses item durability in a less all-in way that just feels like an annoyance. And, likewise, you really can get weapons in Dark Souls that let you dominate for most of the game. Dark Souls doesn't rely as much on the survival aspect of managing equips based on their durability, or the balancing effect that has on gameplay.