I installed these on my Harley Benton PB shorty and they're great quality, they feel nice and smooth to turn, little to no slack in the mechanism so nice and easy to get perfectly in tune instead of yo-yoing above and below the note for 5 minutes per string.
They look great, nice matte black finish all over apart from a small "collar" where the button meets the rest of the tuner, not a problem for me but might stick out if you're trying to go for a completely blacked out look.
The only reason I haven't given these full marks is because one of the screws (I bought 4 of these to install in line) sheared as I was installing it meaning I have a headless screw stuck in the back of my headstock that is impossible to remove without drilling a much wider hole, thankfully enough of it protrudes that it works as a positioning screw anyway, in fairness it could have been me going too hard but I really didn't feel like I was forcing it and I'm not exactly the hulk! They do ship with two screw per tuner despite only needing one so that's a nice plus.
Overall I would recommend these tuners, just be careful when installing the positioning screw.