I was a big Zenni fan, having spent hundreds on many pair of prescription glasses over the years.
I stumbled upon Eyebuy Direct- and have NEVER looked back.
First of all the lenses are astoundingly clear compared to Zenni- identical prescription, of course.
EBD customer service is fantastic- they are polite, helpful, and allow returns so easily.
The EBD website is the BEST around. Zenni is... not. And Zenni customer service is lacking sometimes.
Zenni has tons of frames but the vast majority just plain suck- no one would wear them. EBD has many more usable, interesting frames.
For around 15.00- 20.00 more per pair I'll stick with EBD- the best anywhere.