I will have to chime in again. Although I don’t have any direct experience with the Cambridge Audio streaming solution, I did recommend the CA integrated to a friend. He can bluetooth to it and use a hard wired usb from his iPAD. I sold him a pair of B&W 600 series speakers to go along with it. He was so pleased with the sound he ordered a CA CD player to go along with it. So I think their gear is solid and right up there with the best buck bang solutions in the industry.
Frankly I dont get the Wiim recommendations. I can see it for entry level or secondary systems but that is not what the OP ask for. He already has a purdy solid streaming device and he ask to move up.