I have well over 1000 hours of use in my TR2 including wearing it for up to 10 hours straight on many occasions (I wore it 60 hours in one week). Probably 1500 rounds shot while wearing it. 90% of the time I wear it with glasses.
In my opinion it is hands down the best respirator you can buy if you're going to be doing physical activity or shooting, and it is great with glasses.
I love the strap configuration.
