Robert, this is a subject I am interested in.
The concept of easily reeling in a hose and keeping it out of direct UV sunlight (which kills hoses) is such a good idea. I added a couple hose bibs to the house, then splitters, and ran reels at 4-5 locations, so I didn't have to pull long hoses all over the property. But I have used a dozen of the garden variety plastic hose reels (still $35-50), and they all self destruct (and leak like hell) in very short order (and are pure JUNK!!!). I got tired of replacing them, so now they still hang on my fence and gates all around the property, but I just pull in and coil the hoses on top of them the old fashioned way.

That all metal one with good metal plumbing is a great idea. But I'm not spending that much on a hose reel.