Impressed out of the gate!
The fact that I was not spending tons on this microphone, I figured it would be good but not awesome. Good was good enough. However, plugging them (I bought two) in they are the typical less expensive plastic feeling receivers but still felt solid. Put batteries in them, put them on stage and I found myself shaking my head saying: I'm impressed! Sound quality was great. Had absolutely no interference which was a surprise because of the typical "hole" of a theater we are in. So far, couldn't be happier. Great recommendation!