Hey, great app! I've noticed two issues on my phone (Sprint LG G2 4.4.2).
1) I have "Sync Starred" selected. I believe I have enough cache space for my entire starred collection. Despite that, the "DSub: New media is available - New starred songs" notification reappears very frequently. To the best of my knowledge, all my starred songs are already synced.
2) I have a mix of starred songs and albums. Selecting Home>Starred, then hitting the shuffle button currently only shuffles the songs, ignoring the albums. It'd be cool if there was a way to shuffle it all together.
Thanks!
EDIT: Just remembered one more thing. If I listen to a podcast on dsub, the subsonic web page's "now playing" section shows the correct time when I started downloading the episode. However, if you finish listening to the podcast, then come back to the webpage an hour later, the now playing never goes away. It goes from "59 minutes ago" then refreshes as if I'm just starting the download now. It will do this over and over. I don't think it actually redownloads the podcast, it's just a bit weird. It might do this for music too, but I haven't tested that.
I'm happy to supply additional information or logs or whatever you need for any of these, but I will be gone next week starting Saturday. I'll reply when I get back.