Several non-functional LEDs. I should have bought OEM.
One of the RGB lights does not function at all and two have broken green lights, which means any color that requires green will be wrong. Installing a keyboard on modern laptops is a time consuming endeavor since every single part of the internals has to be removed then replaced and there's no way to "test" this without putting the whole system back together, so be sure to buy OEM only for backlit keyboards (which this definitely is not). Key texture, feel, and speed is good. I would rate it 5/5 if the LEDs worked properly.