i do have quite a few of them, started buying them after canon released one on the G1X. quality of those that i have is actually very good. solid, they stay on the lens well, and personally i think they look great. i use them often. but one issue to be aware of -- some of them include a small metal loop along the edge, intended as a location to attach a cord so that the cap can dangle from wherever else it's attached, you know, so you don't lose the lens cap. this loop makes it difficult if not impossible to use the caps on certain lenses with deep hoods when the hood is attached, it just gets in the way and doesn't leave enough space. so look closely and avoid the caps with the loops, they usually show the cord attached in the photo so they're easy to spot. other than that issue, i love them.