The sound quality is simply incredible. It is, for all intents and purposes, transparent. The XLR adapter seems solidly built and the bracket on it allowed me to mount a pair of Sony UHF wireless receivers. When shooting Betacam in the field, we usually send a hand or shotgun mike to the left channel and send the on-camera shotgun mike to the right channel as a backup. My tookus has been saved many times by doing this.
Wireless mikes get hits or crap out completely at the worst possible time.
The audio from the on-camera mike may not be pristine, but it usually is airable. Less than great audio is better than none at all. It weighs almost 25 pounds and that doesn't include its power supply. Maybe it's a laptop, but only if you're Godzilla. I'm absolutely in love with it.