I got some of these a few months back. I’ve had one fitted with a picnic tap on a keg for a couple months and it’s working fine. Compared with standard discos they don’t feel as robust and they don’t slide on/off as easily, even with a lubed post. When I first used one, I attached it to a mini keg to run some PBW through tubing and picnic tap. When I removed QD from the post, the poppet in the post was left jammed at an angle. I’ve never had this happen before. A ‘WTF!‘ moment it was too. Apart from that I’m happy with them. They have a suspiciously simple design, but hopefully reliable long term and not another Kegland prototype that gets discontinued/superseded in 6 months. They can be a little bit on the ‘craft’ side sometimes.