I loved this. It was funny, it was exciting, it was thrilling, it got dark, and it was even a bit thought provoking. The jokes are solid and the writing has a lot of intelligence and wit. The characters, particularly Gary King, are really good and it was a nice change of pace to see Frost playing the straight man. The action/fight scenes are excellent. It didn't get as heart-breaking as Shaun did, but it certainly got a lot darker in its character psychology. Some of it hit a bit too close to home for me and that made me a little uncomfortable, particularly with the use of "This Corrosion".
I'm not sure if I liked it more than Shaun, but I definitely enjoyed it a lot more than Hot Fuzz.
But on a whole, this was the only summer film that I saw that really felt like a summer film should. I'm really surprised that they waited to long to release it. It really should have come out in May.