Well.. Uh.. You certainly did deliver exactly what you promised us, didn't you?
The violence was brutal, gratuitous, and, at times, creative, and I'd be lying to you if I said I didn't love it. However, if I could level a complaint, it would be that a lot of the animation was choppy and seemed very frame-by-frame. It could definitely be smoother, and a bit more fluid.
A good example of this, I think, would be one of the fight scenes in the show Superjail. There's at least one in every episode, but I think the absolute best one, at least as far as seeing how to improve animation on a one-versus-many fight, would be called "Combatikus", or something to that effect. All the action in it is very fluid, fast-paced, and extremely violent. I highly recommend giving that a watch sometime, if you happen to like blood-n-guts everywhere.
In closing, I'd say you did pretty well, overall. So, 3.5 stars, and have a good one.