Great field of vision
Thermal lens - no fog
Incomplete ear coverage
Pinches nose slightly
Difficult to remove lens for cleaning
I play only occasionally, going out a couple of times a year for the past few years. I finally got tired of playing with the low-quality field rental goggles that have tunnel vision and fog up, so I decided to buy my own mask, with field of vision and anti-fog being my primary criteria. I bought the V-Force Shield ($45) and my brother bought the JT Spectra Flex-8 ($60). We traded masks halfway through our game this past weekend to compare and I was pretty impressed with the Flex-8 until I tried to clean it.
Field of Vision: Great field of vision - you lose almost no peripheral vision.
Fogging: The Flex-8 has a dual-pane thermal lens and had no fog whatsoever. We were playing in pretty ideal conditions - about 65 degrees and low humidity in the woods.
Fit: This mask has a narrow profile and is very lightweight, which is good, but it also pinched the end of my nose slightly, which made it slightly harder to breathe and was irritating. Also, it does not have full ear coverage. My entire earlobe was sticking out underneath the mask.
Cleaning: The lens is very securely anchored in the frame. Very securely. A little too securely, if you ask me. There are 7 different tabs on the lens that go through much smaller slots in the frame to hold it in place. Taking them off is a pain and putting them back is even more of a pain.
This is a good mask, but not great. The fit and cleaning shortcomings really affected my review negatively. In my opinion, the V-Force Shield is a better mask for less money. Same great field of vision and no fog, but better fit and easier to clean.