A few things I found out about this:
Residents of the United States of America only. Promotion starts May 25th at 9am EDT. Free glasses include the frame and standard 1.5 index lenses. Maximum 10,000 frames available to be redeemed. All upgrades including coatings, progressives, bifocals, tints, and high index lenses are not included with this offer. Shipping and handling applies. Some frames may not be eligible. Limit 1 per household. Previous free glasses recipients excluded. CoastalContacts.com reserves the right to cancel orders. Please note: Multiple orders made from the same computer and household will be cancelled.
Also, someone posted a
lenghty review of Coastal Contacts.
They were just ordering frames, though, so I had to look around elsewhere for some additional info. It seems they have this offer every few weeks. While the glasses are free, they charge about $15-20 shipping which does make them slightly more expensive than
Zenni Optical. I've also heard they charge more for anything more than the basic lenses, such as extra coatings. Aside from that, people say the frames are better quality than what you get from Zenni (although not all of their frames will be free - although some name brand frames are free which seems like a great deal).
I've read different things about the customer support. Overall, it seems like a better experience than what people get with Zenni. Glasses come in about 10-14 days, sometimes sooner. Some people have reported good experiences when they had to call for phone support.
I'll be interested to hear about other people's experiences. This seems like a very good option for someone wanting basic glasses at a great price.