I own the neo one, its ok. You have to download multiple versions of roms to see which one will work on the turbo grafx hardware. And it doesn't work on the turbografx+cd, but it does on the pcengine, turbografx, or turbo duo. everytime you add roms, it does a bank swap, so roms you throw on aren't permanent, the software is pretty easy to use. I had a hard time getting it because of the lousy service at ic2005.com that was the us distributer at the time and probably still is. I was going to get the tototek, but it was ugly and barely held any games, haha.