Using app was relatively simple & straightforward. Created & named a custom playlist, but then had to back out the way I came in—no confirmation that my process had succeeded (or failed). Only discovered result when entering Spotify ~24hrs later. Would like to see access expanded to entire library, not just playlists. Met primary objective & exceeded expectations—easily create playlists that mix disparate genres (in contrast to the focussed, genre-specific playlists provided by Spotify)
4/5, Would recommend.