The drwback to nylon "thumbreak" style holsters, is that the nylon is not a stiff as leather (more comfortable), so the thumbreak release it not as sure. And snaps are a more "positive" release than velcro.
For $16, it's not a painful mistake, but many end up in "that drawer" of unused holsters.
If you buy it, give us a report. First impression, range use, and with a one month follow-up.
I carry IWB with a Clipdraw now... almost exclusively. Now that it's cooling off (55 this morning in Orlando), I'll go back to OWB in my Don Hume with a light jacket.