Fantastic quality, love the locking side of them, well packaged, but the best thing is they fitted perfectly to my 1996 Les Paul standard. The bore is perfect and even the screw hole lined up. Mine had vintage Gibson Delux tuners on it, Jimmy Page black tie model, so they have two fixing screws on the back. These grovers only need one fixing point so you can just about see the hole from the vintage tuners at the back, but that is not the grovers fault. Very pleased and had the whole 6 installed and all re strung in about 30 mins.
Not much to say really. Maybe other makes might be cheaper, but if you?ve invested a lot of money on a decent Les Paul, why try and save money on cheap tuners that might not fit or perform as well?