This is a great system for transmitting streams, MP3s etc. at home, in bars, larger rooms etc. or outdoors where cabling is not an option. The build quality is good and robust, the opportunity to use balanced or unbalanced connectors is great. Pairing works virtually immediately; volume controls on both devices allow you to tweak the signal level to get perfect sound. The stereo to mono switch on the transmitter works effectively without phasing issues, and the stereo spread is reproduced faithfully.
I tested the system in my apartment. The transmitter was in the living room; the first test had the receiver and stereo speaker in the kitchen- one room over, but a wall and two open doors between. Worked like a charm! For the second test I went upstairs; the distance was probably around 15 meters. Transmission worked fine until I went behind a free-standing closet, which I would perceive as typical for 5.8 GHz performance and not to be blamed on the device itself - with 17ms latency and transmission at that frequency, this is not what you want for live music or rooms with many obstacles between transmitter and receiver. Within the framework mentioned in the heading, this setup offers solid performance.