As the primary app or "player" for the products, it functions extremely well. It has never froze-up or closed on me like the i-doser android app does occasionally. Aesthetically, the player looks more like a basic windows box and that's fine (personally I prefer function and features over looks anyway). The player is straightforward, easy and simple to use with the ability to stop or pause the stream and adjust volume separately for the dose file and the MP3 file (if playing an MP3 music or audio file along with the dose file). PRO/Biggest Feature: I think the ability to make/create a new MP3 file of your combined dose file and MP3 music/audio is a huge feature in this app/player and allows the user to mix and make customized dose tracks with the music or background they prefer with the dose. CON: It would be nice if the Windows Premium app also included the "Real Time" Tuning feature that's found in the Android app version. I hope I-doser will be including this feature in a future version of the player.