I have been climbing for 16 years, and I have to say the only thing constant in my climbing over that length of time, other than the chalk stains on my jeans, and the want to do one-handed pinky pull-ups like Fred Nicole (look it up if you aren't in the know), has got to be this shoe. I have gone through probably 8 pairs in that time, and re-soled a few times as well, but I can't stop climbing in the Moc. I love the fit and feel of this slipper, giving you excellent foot control and finesse for any climbing. I know people praise this as a crack shoe, and while I agree that this shoe knows crack, its been my goto for just about anything. Only downside is heel hooking as the heel can pop off on aggressive heel maneuvers if you don't angle it right. Even with that criticism, this shoe should be in your arsenal.
Tends to stretch a good amount so size down.