Cutting down on vision is an understatement. I own one as well and used
it once, well twice cause we did two dives that afternoon... Haven't used
it since. I like the idea of the pod though... I like the acordian style mouth piece which you can keep in your mouth or not.. (watch for Co2) and the pod where you can switch with another reg during a dive is nice.. just the lack of vision is the only pitfall...