The linear rail appears to be quite cheap and even after cleaning and greasing, hangs and catches even with noting mounted on it/ not attached to the rail.
The mounting plate guides for the belt are also .3~ mm too long and contact the aluminum frame, causing it to not move at all (best case scenario, scratch your aluminum frame).
The hardware and screws are nice and it does come with instructions thankfully, seeing as the rail is faulty and I am now the second buyer with the mounting plate issue, I don’t know if it’s worth buying.
I sent an email, and I’ll update my review should I hear back from Maker3D on a resolution.