Changed my review
I’m changing my review to 5 stars, the developer is very good at communicating and is very responsive to feedback and questions. I think he has done a really good job on the app. The only issue I have with this app is that you have to watch the way you create your smartlists on your cpu. The Marvis app doesn’t always respond to the smartlist rules created from the CPU, so you will have to tweak your rules if Marvis shows 0 songs in your playlist