I just gave this a shot, it shows a lot of promise. My android frontend of choice is Dig and the importing process is nicer with launchbox.
As of right now, I do think it needs a few features, some fairly:
Urgent:
Clear instructions somewhere on how to get the exact info you need to set up custom emulators, including rom path key. Even if it's a link to a thread post that's fine, but it needs to be clear on how to find all this information
Game text search
Game voice search (should be much easier on android than windows)
Ability to change settings for individual games
Not so urgent:
Themes could do with some work - please include a grid theme for platforms as well as games
Custom theme support
I can tell it's still early days for this frontend so I'll be keeping an eye on it with interest. I expect you'll have basic feature parity with the windows version before long