Yeah, it definitely worth the price.
I was not really sure if i was going to regret buying this (considering i never played the first one) but i did not. The game had some those moments that were real satisfying, especially with friends.
I remember Ehrgeiz, me and my brother used to rent that alot.
This game seems kinda like it was influenced by powerstone 2: large levels with tons of multiplayer craziness and large bosses. Really looking forward to it.