simonk999
Contributor
As the instigator of the older, longer hydrooptix thread referenced by RoatanMan, I unreservedly recommend reading it, instead of posting what is probably redundant info on this thread. That thread has posts pro and con, with a lot of in-depth posts.RoatanMan:Try a "search" using the word hydrooptix here's my view!
http://www.scubaboard.com/t59191-.html
To quickly summarize: really amazing wide field of view if your eyes match the mask and you can deal with the fit and looking silly (this is a debatable point, imho). Some problems mentioned, which are not unknown to other masks: fogging, leaking (which due to the mask design, does pool in the center of view looking downwards, not like a flat pane mask). Most think if your eyes do not match the mask, dealing with the contact lenses is not worth the trouble, but there are some converts.
Me, I fall in the sweetspot. Fits me and my eyes as is. Love it.
-Simon