I made it several months ago. Got tired of rounds popping out in my pocket, and didn't want to spend money on a holder since I had Kydex and a press. It works great! Much better than the double leather mag pouch I made a few weeks ago.
When I make another, l try leaving the base more flat to keep it from tipping in larger pants pockets.
It's not as fast as a belt mag holder, but with practice you can get somewhat close.
Kydex is really fun material to work with. It's very forgiving and you're only limit is your imagination.