This thing kinda sucks a little bit. I love the idea of it, but I've been having non-stop problems with the device. Been trying to use it since it released, but every controller I use with it occasionally fires off an extra input, messing me up in games and shit. It's like the sensitivity on the receiver is messed up or something. I can't find any firmware updates or anything; which is a shame, because blueretro is a bit worse in terms of default button mappings (and it's also damn near impossible to change them).