Excellent product. I was worried since I purchased a used product. The product arrived smudged and a bit dirty, but it was ok. I cleaned the device and it looked good as new. The internals seem to be fine as I have used the device a few times in the past month and it works. Battery seems to hold just fine. I have purchased game cartridges and downloaded games. Both work just fine. The controllers work great, and mine to not sway to a si gle direction like other Joy Cons, that I have read. The cradle works great and plugs easily into all of my television sets. I highly recommend and you'll be happy. I only use the device for a few hours a month so I wouldn't say that I'm a heavy gamer. Very casual so a used unit fit my needs. Very impressed and quite happy.