[sammyg2]

I've got the 50' x 3/4" version with solid brass fittings (NO PLASTIC!).

Anything thinner than 3/4" is too small. It works well and I'm happy with it, but it expands and contracts slower than on TV. Takes prolly a minute to shrink back down (insert sophomoric joke here).

I was skeptical but got it for Christmas and I'm happy with it. Lots better than dragging out and putting away a big bulky regular hose.
The unknown is how long will it last.
Lots of cheaper versions out there, buyer beware.