I am short (5'0") and have tried the footstool, which is OK; Dynarette cushion which didn't work at all for me, too unstable; Gitano, which didn't adjust short enough for me; and the Tenuto, which I currently use with shelf liner between it and my pant leg, since it is slippery. I wanted to try the child size Tappert, but saving for a new guitar and don't want to get yet another one that might not work. And I like that the Tenuto stays on the guitar even in my case, since the guitar is a 630 scale. When I get my new guitar I will look into the magnet support.
The Murata looks intriguing, but I haven't tried it. But I like the grip, similar to a violin shoulder rest, which works great for violin. I actually thought my leg would be too fat to fit into the bottom part properly- haha!
So if I could only choose one, it would now be Tenuto, since the strap on it is adjustable. I hope the Barnett will work in terms of height for me when I get my new guitar.
If anyone wants my hardly used Dynarette support small size for a good price (like free), PM me- US shipping only please.
2017 New World Player 628 spruce