love, love, love my K'tan. We actually like it so much that DH even got one. We take walks in it, use it for running errands and i wear it around the house when DS is crabby. He almost always takes a nap when I wear him in it; he's so comfy!
I didn't have the patience to deal with all the wrapping required by the moby. I gave mine away after trying to use it six or seven times.