Streamer under $1000 with built in Amazon Music HD

I'm admittedly an analog guy, so I haven't really looked at digital in any depth, so I'm hoping to create a short list of streamers with built in DAC specifically with a top notch Amazon Music HD interface.

I use it on the phone for car and headphone listening, but now I want to add streaming to the 2 channel system.

I'm most concerned with the wife using the system.  She can get around the Amazon Music phone app, and has some playlists.

She currently streams music from the Roku thru the home theater portion of the system.  We tried to use Heos app but it has an absolutely horrible interface.  And I'm not happy having to stream thru the HT portion of the system, especially having to use the TV and AVR.

Sound quality isn't as important as the ability to control the streamer with the phone.  We use it for background music.

What streamers, in your experience, has the best interface for Amazon HD built in?

Thanks in advance.