I purchased this after a wood chip managed to get behind my glasses and scratch my eye. I have used it for several hours at a time while pruning trees and cutting logs. The ear protection is as good as my regular muffs, the screen allows airflow while keeping wood chips away from the face, and the helmet has preotected me from some nasty bumps when I stood up under a branch or a branch fell closer than I expected. The adjustment mechanism works well and allows the helmet to be adjusted snug enough to stay on securely, even while bending over. This helmet is lightweight and comfortable to wear and exceeds my expectations for homeowner safety gear. Aside from the protection, I like the fact that it doesn’t prevent me from using earbuds and provides enough muffling so that I can comfortably listen to podcasts or music while I work. This is much more convenient than separate ear muffs, goggles and head protection. The screen not only provides full face protection but eliminates the problem of fitting goggles over glasses and dealing with goggles fogging over. I appreciated the assembly video so I was confident that the helmet was assembled properly, and the follow up emails from the company were friendly and professional. I have not had a need to use the polycarbonate face shield yet, so cannot comment on its functionality.