Hey Blade,
I own it....or at least owned it (until I lost it on my last trip to Florida). I've since ordered a new one, and it's on the way.
Let me start by saying the I am a freediver because I like to hunt....not the other way around. All comments to follow are the opinions/findings of a spearo. Here's what I can tell you. I love this mask. The volume is modest. I prefer to use it for depths down to 60 or 80 feet. Past that, I prefer to use my Superochio. The silicon on the minishadow is some of the most comfortable I've felt. It isn't glossy and "sticky" like most. It has a matt finish and is a bit softer. What this mask lacks in volume (and it's really not that bad - probably equivalent to a Cressi Bigeyes or Horizon - I've used both), it makes up in field-of-view. The upward and horizontal view is the best of any mask I've ever wore. The downward view is damn good too, albeit not quite as good as the Bigeyes. I bought it because I was sold on the frameless feature and the fact that it only uses one piece of glass. Two pieces of glass doesn't drive me crazy, but I prefer the unobstructed view of 1 piece. One thing to take into consideration before you go running for your credit card is that it will not fit folks with a nose that has a high or thick bridge. So if you have a bump on your beak (between the eyes), you might want to steer clear. The reason for this is because the glass is mounted on the rubber so close to the face (to reduce volume / improve field of view) that it will come in contact (uncomfortably) with the top of the nose. If you have a high-bridge nose, it will push on the back of the nose pocket. If you have a thick upper nose it will not fit into the small groove. Did this explanation make sense

? That being said, if you don't have a huge honker, and do a lot of shallow-water spearing/diving, I think you'd love this mask.
Ted