I haven't had these very long, but I can already tell that they're wearing out faster than the genuine Shimano cleats do. However, I put them on my winter shoes, which don't see a ton of use, so it made sense to save a few dollars and sacrifice some longevity. If you're in a similar situation and buying cleats for a pair of backup shoes, these are a good buy. They're holding up fairly well and I'm sure it will be a few years before I wear them out too much.
