I have owned these for about a month and they really do help in flat light situations to an extent. The lens are very clear and large which is nice. I noticed the increased airflow through the top which at high speeds is a little annoying but not an issue at normal cruising speed. The first time i skied powder I noticed some dampness on the inside of the lens which I thought was weird - they were missing a foam piece that was supposed to have been glued to the lower vent. So this is a good goggle, but lousy quality control as these should never have left the factory like this. Unfortuneatly I already have used them several times so can't return for a new pair that are assembled correctly.