This review is partly objective and partly subjective. The fit of the mask itself is good, at least for me. Breathability is quite good and excepting the lack of exhaust valve is about as good as my Honeywell/North half-mask respirator. It also seals as well and is much better than masks or gaiters. It absolutely solved my "runny nose" syndrome that comes with direct-contact face coverings. I'm a sweat-er (I fill surgical gloves in under half an hour) and there is an issue of sweat buildup at the seal but I can live with that. The straps appear flimsy but aren't. What they are is a bit too tight even when loosened but this proper adjustment may require more wearing time than I have invested. I am considering using two straps, one for top and one for bottom to see if that improves long term (> 2hrs) comfort. I wear the Gill under a washable Mission multi-layer gaiter for appearance more than efficacy, but it certainly does no harm. Bottom line: best mask I've used.