The price is perfect if you need a half-decent pair of backup/spare glasses.
Being used to lens from optometrists, I found the quality lesser than what I was used to (but perfect for the pool or as a backup pair!).
At first, I thought the prescription was wrong, and customer service had me send the glasses back with my original prescription. I got a new set that was a bit better, but still not as good as the $200 ones I got from the optometrist.
The deals they offer are excellent, and one of the reasons I come back.
Lovely polite people who replied within the usual 1-2 business days.