I bought this product to use when speaking to fairly large groups (about 100). I needed something that I could trust, a microphone that wouldn't 'drop out' words due to poor reception or interference, and I'm pleased to say that this item worked perfectly.
It's light, has a good sized on/off switch on the body pack, and is easy to set up. I did change the microphone to a flesh coloured cheek mike as I prefer something fairly discreet, and it worked a treat with my old mike. I was pleased that the system also included a short lead to use from the receiver to my amplifier/speaker system (also a QTX).
I would recommend this microphone system to anyone.