I first bought some to test them and expected to change them once I knew what I wanted from a wall mount, but I have ordered some more because they were exactly what I needed.
I think they are well made for the price and instead of the ones where the guitar locks in to place, I can't see how there could be others that do their job better. I don't mind there are no screws included since I generally don't use the screws that are included. I use screws and wall plugs that might be overkill, but I believe those are the important bit with this kind of set up.
I use them for les paul, sg and flying V guitars and they support the guitars just fine.
The hook can be screwed out of the base plate, but I'm not planning on doing that. I firmly screwed it in, put a level on the hook before marking where to drill. So with this approach it is possible the holes of the baseplate aren't completely 'straight'. like not on 12, 4 and 8 o'clock but 1, 5 and 9 o'clock. But I choose to have it firmly anchored instead of visual appeal of aligning of the screws.
I'm curious to see how the foam holds up after some time/use.