I have one, I use a Tulster OATH with the Glock 19 and a RCS Vanguard 2 with the Glock 43 when I use it. I rarely use it, when I do it mostly serves as an option for when a tuckable holster is too conspicuous. For example, the last time I used it was with the 43, I was in a suit being the best man at a wedding.