Took a couple of weeks before I got it, but I have to say this is by far the best home or otherwise conversion I have ever experienced. It's as close to arcade perfect as can be without people yelling and the smell of bubblegum.
Galaga's bullets can be manipulated, Pac-man is the right speed and resolution, Xevious sounds just right and Dig Dug moves perfect. There is also Dragon Spirit which is flawless as well as Xevious Ressurection.
The leaderboards consist of who is on your friends list which makes it very personal and fun, it isn't like you have to get #1 in the world, just against your friends, lol.
This is the closest thing I have felt to being in an arcade in a long ass time and I recommend this to enthusiast's, purists and collectors, it nails everything and leaves any other "emulation" in the dust.