Pretty bad Honestly I'm only giving this 2 stars because it's the only dreamcast emulator. Graphical glitches are constant. On screen touch controls are the worst I have seen on an emulator yet and especially the dpad buttons. I don't see an option for save states. Not enough configuration options and can't hold connection to my gamepad for more than a couple minutes. Maybe I'm being harsh as I believe this is new but as it is now  I can't recommend this to anyone.
October 22 2015