When I installed the first LED button kit I ordered it took awhile and had more than a bit of a learning curve, however once completed was incredibly satisfying especially with the all black shells. The second kit took half the time and was far less frustrating. Definitely check the manual and look at the video on Youtube, it makes a huge difference (which should be obvious). Changing the lights or turning them off or on once installed is very easy, battery drain is minimal if even noticeable at all. A few buttons stick but that may be user error on my part. Overall Id say its worth it if you want to trick out your favorite joy-cons.
