I have one. I use quick release clips for my two giant Subaru key fobs. Overall, I give this a solid meh. The tidiness factor is nice, but:
The claim that this prevents pocketed keys from poking you is wrong. Keys will slide out of the thing and poke you. So will the KeySmart itself.
Manipulating a key into tight areas can be difficult.
Removing keys is essentially impossible, so make sure you have all the copies you want before you put it together.
Speaking of, putting it together is a curse fest. Small fiddly bits that require careful manipulation and tightening make for a less than fun experience.
Overall, I don’t recommend this.
