Yeah, those things are pretty neat. I tried one out while I was in Groton. Makes you feel like you are in a bubble almost. It reminded me of the suits that you see people wear in lvl 4 biohazard areas at the CDC. The thing has a little inflatable "dingy" to go with it. Leaps and bounds ahead of the old/current Steinke hoods.
Former shipmate of mine went to England to test them out in an actual dive tower. He took a ride up from 30 meters. Said it was the scariest fun he has ever had.