The races are not particularly sophisticated, but not so simple that it would be boring. The control by tilting the phone / tablet works pretty well. Alternatively, you can also easily control via thumb.
When the local network has several Android devices to the game, one of them can start a server, and you're off in multiplayer mode.
Tested with Moto G and Kindle Fire HD (which does not work on the Moto G to start the multiplayer server wanted).