IK Multimedia iRig Keys I/O 49

I use this on an iPad with GarageBand and on an iMac with Logic. The keyboard is just the right size for those with limited space, and it's easy to pick up and move between the iPad and the iMac. The keys are very playable with good velocity response. The letdown in this is the audio interface. It's fine for use on the fly with the iPad, but working with more than a few audio tracks there is not much clarity and playback can become choppy. You can change some parameters (buffers etc.) within your DAW to mitigate this somewhat. Again, perfectly fine for getting something going on the iPad but I find myself switching to a more capable, dedicated audio interface (FocusRite) when using the computer.