The app is pretty good

It offers all of the features of Pandora One - but needlessly restricts those without premium pandora accounts. It has two states, expanded and collapsed. In an expanded state, the window cannot be moved. It hovers above all of your other apps, occasionally getting in the way - despite not having any useful controls built into it.

This app would be far better if it was a menu bar app that didn’t get in the way and allowed free pandora accounts to listen to their channels.

Mrorbitman about Mint - Pandora Mini Player