I was seriously looking at this unit for my bedroom, thanks to this review I will look elsewhere.
My main system is comprised of the Matrix Audio Element X. I will say its software is 90-95% there. It has a few minor niggles that I can live with (example: scrolling through folders in the player, if I enter a folder and then return, it jumps back to the top of the list and I'll have to scroll back down to where I was browsing).
The only other affordable alternative I can find is the Yamaha WXA-50, and that's about it. A lot of members here suggest building Raspberry Pi units but many of us are looking for a wifi based simple all-in-one-box solution. with good UI. The cheaper Matrix Audio units are around $1000 and is too much for a second system. This is a gap in the market that I hope it will be filled soon.