Rants, Raves, and Praise → Re:  

I used to listen to Cinemagic on XM, perfect when driving in stormy weather at night...just set the perfect mood, and between and them getting rid of BBC Radio 1, I wasn't too impressed. Anyway, volume on Slacker has been consistent. Not sure why they do it on others, maybe it saves them usage, I dunno.

Another vote for Slacker. I loved it so much, I went premium & dropped SiriusXM. I stream it on my PCs, TVs, Smart Phones & via my smart phone feed it via Bluetooth to my car audio.

I also have Slacker Premium. Pretty sweet being able to use it on all kinds of devices as you say.

I stream from my phone or tablet to a bluetooth speaker in my bathroom for the shower tunes that get me pumped up to face the day.