Quite good quality, the change was quite easy and the design is exactly the same so it fits very well in the place of the old one. Personally, I didn't notice any difference from the originals.

If you haven't opened the joycons before, and the problem is drifting, contact Nintendo first, as they are now obligated to repair joycons with drift.

Its function is very good, it has accuracy and fast response. The replacement is relatively easy. The console's screwdrivers are necessary for opening the controllers.