I didn't really like Shadow of the Colossus.
I thought the controls were absolute trash. Half the time, I'd jump instead of getting on the damn horse. Camera was a pain, moving around was a pain, framerate still bogged down at times (PS3 version) the whole thing was just a chore to play and not very enjoyable.
That being said, I thoroughly enjoyed the art design, the concept of the game, and the idea of figuring out how to take down each colossus. That was cool, but actually playing it - it was dreadful. I can see why people like it conceptually - but the controls, AND THAT DAMN HORSE, just killed it for me.
Super hyped for The Last Guardian though. Very few games feel like a labor of love, like some heart and passion went into them - The Last Guardian appears to be one of these games. No doubt the SotC was too, but damn. I enjoyed Ico, for what its worth.