Highly recommended!
I use the app to study jazz guitar. Often the rhythm and chords of the real performance diverts from the sheet music. The app is a huge help to get this right and play more natural (especially with unusual time signatures). Especially with the (new) possibility to store and share loops my study time is much more efficient. Finally it’s extremely easy to use. There is a short time lag in playing back the loop, but a perfectly connected loop is not the goal of this app, so that’s no issue for me.