I've got to say I'm really enjoying Soul Sacrifice. After the demo came out I wasn't sure if I'd buy it or not. It seemed very complicated and confusing and wasn't quite what I was expecting. I ordered it last Sunday anyway and I'm just now really starting to get into it.
Once you figure out how the offerings work, their limitations, and upgrades it becomes very enjoyable. The controls are actually really simple. You assign offerings to a button, press that button to make the offering and then press it again to use the weapon. Sounds overly simplistic but it works. I'm just now scratching the surface and can see that there is so much to the game that it will take a long time to complete. I haven't checked out multiplayer yet because I don't want to make a fool of myself.