Good review. I didn't play much of Manhunt at all, but I can tell you that what I did play- I positively hated. Poorly implemented stealth and a pathetic amount of revelling in how violent it is. Don't get me wrong, I love violence, and I love revelling, but this was too crass for me. No, shall we say, class with it's actions. GTA violence- classy. Manhunt violence- sad.
That said, following the UK press and it's attack on Manhunt following a dumb murder, I side fully with Manhunt. It was tasteless, yes, but it wasn't evil.
That aside, I liked Manhunt's theme and the violence, had it been handled less obviously, would've been really enjoyable. The gameplay for me, however, really wasn't enjoyable. I sent it back soon after purchase. Still, I enjoyed the read, matey.