However, feature-wise, it is unfare to compare this little one with Cleaner, or Compressor. This application designed I guess, not as an alternative, but like an free solution in simple cases for people who even don't have a "pro" version of QT. And as such - it's good. To "unify your library", as ReadMe comments,- what for? "Upsampling"- to what extend?... ReadMe comments file -s weakest part of this, mostly because it diesn't clarify that this Batch Export Utility basicaly consist of employing QT conversion interface in batches. It adds minimalist's interface.
All process even slower than if it was done using QT Pro 'Save As" mechanism.
Flexability and fine tqeaking lovers - use Cleaner and Compressor.
But - again- this app worth every penny you spent on it!