Works great. It plays my old originals except for the real dirty ones. I've got to clean them so the console can get a read on them. I even purchased the 150 in 1 cartridge that's for sale on Amazon and it worked great in this console. I'm super happy with my purchase. So are the kids! They are loving all the old Mario games. (this was my cure for not being able to get my hands on one of those NES Classic Mini's). A lot cheaper than paying those scalper prices.

Spectacular Game system, to have NES and SNES in one system is awesome...had many games, and always fought older system to work consistently. This fit the bill perfectly

My grandkids are having an awesome time playing all my old Nintendo nes and Super Nintendo games that they played when they all were young. Easy to set up!!

For the price, this is a fairly good unit. It doesn't feel like it's made of the highest quality materials, but so far it has worked with every game I've tried playing. You do have to press the cartridge in pretty firmly to make sure it's seated correctly, which makes me worry about the long term wear and tear on the cartridges, but it doesn't get used too much and there isn't a lot of cart swapping so I don't expect it to be an issue.

It would have been nice to have an HDMI connection instead of just the component inputs, but that's a minor complaint. It does have an S-Video connection, but the picture is really bad (like there's a cross-wired pin or something) so I just use the standard RCA video connection. Given that NES and SNES games are not exactly high definition, the RCA is perfectly sufficient.

The controllers do feel light and cheap, so expect that. However, the inputs are exactly the same as the standard SNES controllers, so any old SNES controller or a higher end replacement should work fine. The current controllers appear to work fine with no control issues that I've experienced so far.

Overall, given the fact that this was under $40 at the time of ordering, the unit has exceeded my (admittedly low since I didn't really expect it to work very well) expectations and I would recommend it to anyone looking to dust off their old school games and go back to a simpler time in their lives.

Works great with 500 in 1 cartridge commonly found on eBay.
Great value to play your games and keep the collectible NES in the box.