Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Garbage - do not buy

These units are deeper than a standard electrical box. The wire connectors are only deep enough for 1/4" of wire, thereby guaranteeing that the wires will pop out over and over again when you try to fit the unit into an electrical box (and good luck doing that - these things leave NO room in the box for your speaker wires). The instructions are unintelligible - tables where you need to look up a jumper setting based on the number of speakers actually refer to PAIRS of speakers, but you can only work this out by reading and re-reading the garbled examples. To mount the unit in a decora box, you have to attach a plate that does not fit at all securely. A colossal hassle overall - AVOID.