I've commented on a couple of the 'less than favorable' comments as their issues were things that I too experienced, but found ways to remedy.

The real trick to buying these is to take the time to really check out the wide range of variations in this style.  From the frame color, to material, to finish, the frames offer a few possibilities.
And the lenses too come in a range of different types and materials.

Personally, I have always preferred Ray Ban's G15 "green" glass lenses.
My first pair of these had the gradient mirror lenses (plastic).  I wasn't thrilled, but I liked the frames.  So when they got scratched, and I called Luxotica for replacements, I got the G15 glass and never looked back.
I also properly adjust the ear pieces to fit nice behind my ears to keep them from slipping down my nose, which also eliminates the tips from touching the inside of the lens when they are closed to go into the case.
I wonder how many people don't know that glasses come from the factory NOT fitted to them, and need to be correctly adjusted, just as prescription glasses are done at the optometrists.
Maybe many people don't even think about it, or know that it CAN be done!

I recently ended up not having my pair anymore (I guess someone decided they wanted them more than me and took it upon themselves to correct that situation).  So now I've bought a new pair (from Amazon) and I now have my favorite, most comfortably fitting (for me) shades again.  Things are good!