Got a MagicX One 35 recently and have been loving it as my every day carry around device. I've been playing stuff up to Dreamcast (and surprisingly haven't played a single GBA game on this GBA screen'd device) including PSP, DS and N64. What's surprised me as a nice "bonus" system, 3DS. Things don't run perfectly, you might get a random stutter here or there and loading screens kinda chug but once in game you usually don't have a problem sticking to the games designated FPS. Been enjoying Super Mario 3D Land and tested a bit of Pokemon Sun which runs great in the overworld and battles but chugs during loading transitions and when you see a move for the first time. Otherwise it's great.