The tint is pretty dark in all of these but any tint will help on low light days. You can refer to this website for a detailed description. http://www.pocsports.com/en/content/view/protective-concepts#Optical%20Concepts for the lenses
I have them, Your best friend most likely has/has had them(and he is REALLY COOL!) the girl you like has them, and your parents had them in the late 80s/90s, So the question really becomes "Why don't you have them?"
I got it because I have a huge melon with some weird lumps, which in the past has caused issues with head protection. The mirco adjustments make it fit like a glove and I haven't looked back and worn it everyday since I got it