Overall very poor. The body housing had little flecks of plastic from the moulding process that came off and were sitting on the o ring ready to cause a leak, the sync housing that cost nearly $700 is poorly designed and barely fits the transmitter and is massively over priced. Gear that was not QC'd properly out of the box I had to pay to send back. There are few/poor instructions on how everything fits together eg how do I stop my camera sliding around inside the housing? I'm seriously considering sending everything back and look at alternatives.