The Cressi, or any knock off like it, are not really worth the trouble. (Been there done that) There is no oral nasal pocket and the CO2 buildup is a real problem. Breathing gets hard real fast due to build up. There is not enough room to replace the mouthpiece on the inside so you can breath like a normal second stage. I haven't ever seen anyone actually use a scubapro. The Kirby Morgan EXO 26 is ok (I work with one sometimes doing light stuff) but I think it would be bulky for recreational diving. The M-26 seems a little less bulky. The aga's and interspiro seem to be liked by many who are determined to have one. I have personally found a good hood and suit with a regular mask has served me well. I did an hour in 42 degree water in Maine in 1998 (2 pc. 5 mil wetsuit and a SP steamer, 7 mil hood and 5 mil gloves and boots) and was just getting a chill when I finished the dive. My face was fine as little was exposed with a good hood. I am fortunate that I don't get cold easily, though I now own a drysuit or two. The FFM benefits usually don't match the trouble or risk in using them in my experiance, except for working where I need comms. If protection from contaminated water is a reason for this mask, none of these are any good. You need a full helmet (Superlite, Miller, Desco, etc) and maybe even one that is specially made to completely isolate you from the water. But, that has been my experience, others may be able to offer something more.
