Bought prescription Persol sunglasses from here a few weeks ago.
I shopped around extensively for sunglasses and priced my lenses at about 7 different shops and LF was bar none the most inexpensive quote I got for my prescription lenses - which have a strong prescription, LF's lenses were more inxpensive by a wide margin (over a hundred $ cheaper than any other place).
I got my shades and lenses back in about 10 days, very happy with the service and the quality of my sunglasses. The frame price was also significantly less than other places too. I came in here several times before to try out frames and each time the service was great.
Julia helped me and she gave great advice. Recommended for those in the market for glasses / sunglasses.