I was definitely impressed, and I always thought for everyone bashing his standup, they were really underestimating the force behind a lot of his punches. Sure, they might be a bit sloppy, but they're hard as hell and the guy has the balls to get right up in your grill. Personally, I think he took the fight, though in some sense I can understand how it went to Bisping. When the decision went over, I went ballistic, but after having some time to think about it I kind of understand. Hamill really burned out and seemed to ride the wave of his first round domination, whereas Bisping was gaining confidence and landing more shots as the fight went on. I think in light of that, it sort of makes sense that the fight went Bisping's way. Either way, that fight was called as bad as a Clay Guida fight and I think Hamill should've won it.
But, the fact that it went sour for Hamill is due to the one glaring weakness in his game that he's had since the show: Stamina. The guy burns out faster than a fourth of July firework, and that's the just the truth. Sure, he looked awesome for the first 4 minutes of the first round, but after that he looked sluggish and tired. Heck, the guy almost collapsed after the second round and was sucking wind throughout. He did the same thing on the show, and it's kind of disappointing to see that with all of his improvements, he hasn't tuned up his cardio. Maybe he has a hard time handling the adrenaline or something, or can't control his breathing when he gets hit. Who knows, but either that or he's not training right, because the guy gets tired.