It’s easy to install them, but the potentiometers are bad, loose. You can feel nothing when you turn them around. After 2 months of using it, I decided to get rid of them and buy myself a new one from another brand. It’s all good if you don’t care about the damping feel of the knobs. It’s not useless, with the solderless design, you can easily swap pickups and try out which one is the best fit for your guitar.
One good thing is the out jack, I personally feel it’s better than the gibson stock one. It’s tight and it’s the only thing from the set I am still using.
At the monument I am writing this comment, the 30-day-money-back has expired already. I am just going to keep it, for a potential future new Les Paul. I prefer to use it as a tool for testing out pickups, instead of keeping it permanently in my guitar.