I love using these for non-Olympic weightlifting and for running. Actually, I also used them for climbing in Acadia National Park. Theyve held up great. Im flat footed and have wide feet and these fit well and helped strengthen my arches. There is an adjustment period though, I started out only doing some cardio or .5 mile runs in them because they work muscles that aren't used to it. It took me ages to be able to jump rope in them without getting awful calf cramps, but it was worth powering through.
If you Crossfit though avoid these for rope climbs- no grip and the rope is like soap against them. It tears through the fabric too :(