I had a mini and traded it and still have a cat III, fleece model. I guess I don't like either as the III still hands on it's hook in new condition. Might be a good deal out west where you're chasin' elk over the hills, but here in the eastern hardwoods, nothin' works as well as a plain ole bowquiver.
It's difficult to replace arrows. All of the arrows have to be the same length, or if your blunt is shorter, you need to modify a bit, or use a piggybacker. Gotta take it off to sit down. Sure, they'll keep your fletchings dry, but so will a plastic bag with less hassle.
I'm sure there are archers who love their catquivers, but I'm not among them. Mine hangs on it's hook and I use it for storing my small fry, GN, eagle's flight, etc.