I like the custom fit, no leaks, low profile, anti-fog function, and no red marks around my eyes! A great product! Ine thing that would be helpful is a tutorial for newbies like me that would specify: - remove the film on the outer goggle; - instruction regarding nose piece placement that does not sit on the nose as some other goggles; - instruction regarding placement of straps in the back of the head; - instruction re how long the anti-fog function can be expected to last, and what to do after it wears away; - quicker follow up to customer emails with questions.