I have a Cambridge Evo 150 all-in-one. This thing is like a Swiss army knife. Many ways to stream and DAC integrated in. Do they all sound exactly the same? No. Most sound very close though. Chromecast can be a straggler sometimes. Nature of the source material is the biggest variable by far. However I hear more in most recordings of decent or better quality than ever before.
I think for many who want to simply cut to the chase for top notch sound streaming an integrated device like this is the ticket. This is a future-fi trend and I expect many other new and similar devices to be coming the consumers way in the near future.