I've been really impressed with Qobuz so far. It's by far the most open HiRes streaming platform I've tried, supported by USB Audio Player Pro on Android (which brings proper bit-perfect support for external DAC's), Logitech Media server and Google Chromecast (up to 24/96) all of which I use frequently
It also has a seemingly very wide selection of less mainstream music, which has made me realise I've not kept in touch with so many new releases by bands I enjoy!
I tried the Amazon HD service a while back, which is £2 / month cheaper and has the cheapest family option, but it has severe limitations with achieving bit-perfect replay in the real world - their Android app doesn't support external DAC's and I suspect doesn't enforce correct sample rates and even on a PC it's problematic. Chromecast in HD is unsupported and they don't seem very open (at present) to third-party developers.
This is the first time I've felt this is a service worth paying for, I've spent around £40 on used CD's this month and everything I purchased is available on Qobuz.