In practice:
I use it mainly to fill the silence in my room. The home theater is being heard quickly after 23h ... All my songs are in my Samsung GS3 serving wholesale, universal remote with all the comfort that a smartphone can offer. At this level I am quite satisfied. No need to get up to change songs or adjust the volume. Everything is done with the smartphone. You just turn it on and off. Logic!
Another good point about the device. Being independent of the PC, it can offer me a background when I'm calling with Skype and Teamspeak. What is very significant.
Audio quality:
To be clear, this unit can be used to animate a party to 50 guests. By cons in small groups it may show convincing. At least if the volume remains modest.
Just talk. Seeing the datasheet I expected something not very noisy. In reality it turned out that I never have to push him into a corner. He managed even to become too powerful for some.
In terms of fidelity music and who mainly listen to FLAC via APT-X (SGS3 compatible with this codec) I can confirm frankly it fulfills its purpose. Each instrument is highlighted (currently I listen Gorillaz and Daft Punk).
Many will probably think "And then the bass?" and although they are present and out through the rear of the unit. Going to the hand I can feel the breath coming from the subwoofer. Having placed between five boards (in a cupboard ...) The bass effect is slightly accentuated.
No matter what style of music (I also tried classical and rock) D200 remain pleasant at all times.
In short:
This is a very good investment, go for it!