To add to some of the complaints being listed here, I've had my Mojo for about a month, and I've been pretty disappointed with the battery life. I'm lucky to get 4-5 hours play time, using a moderately efficient sent of headphones like the Beyerdynamic T5P 2nd gen.
To add to that, I simply can not get it to play nicely in Windows 10 using either of the drivers from Chord's site (the regular or the "creators" drivers). I tried two different versions of JRiver (20 and 23), using kernel streaming, Chord ASIO, and ASIO4ALL. Ironically, ASIO4ALL is the only driver in JRiver that provides reliable playback, but it unfortunately doesn't support DSD. So I am stuck having to go back into the settings and change from ASIO4ALL to kernel streaming every time I want to listen to a DSD album. I've tried all the different USB ports on my machine, to no avail. By contrast, my Dragonfly Red works without issue. The problems I am speaking of happen at random times while using other things within Windows, one of the biggest culprits being a web browser. The sound begins to break up, then gradually deteriorates until JRiver crashes completely. On top of that, if I try to use Tidal in exclusive mode, my entire PC crashes....yes a blue screen in Windows, something I haven't seen in a very long time. This is reproducible every single time I put Tidal into exclusive mode with the Mojo.
The fact that ASIO4ALL works ok but their own driver does not seems like an indication that they need to spend some more time on QA when they develop their drivers. All this being said, I still love the performance of the Mojo, but it is definitely very "rough around the edges" when it comes to stuff like this. I just hate having to work around all these issues to be able to enjoy it on my PC, as it puts a real damper on the whole experience.