Product review (3 stars): Well made, but no check valve and cannot be disassembled for cleaning
This is quite well made, it installs easily and works as expected. there's no check valve inside, which is a bit annoying, but livable. However, I am unable to take it apart for cleaning. There doesn't appear to be any way to do this, and beer taps should be cleaned OFTEN. The most I can do is remove the fittings and the air bleed valve and flush it out with sanitizer, but the piston cannot be removed because the stops are riveted in place.

Granted it's a lot simpler design than a normal tap, and less grime should build up in there because of that. But I still would much rather rely on visual inspection over flushing it out and hoping for the best.