Here is on e place I've read information about these "contacts.
"In the beginning, you'll have glare and halos that will be reduced with time, but may never completely go away...patients with large pupils are especially susceptable to this."
It also says that you will have to stay with the lenses and there will be additional replacement costs. Once you stop wearing the lenses at night then your eyes can slowly return to their original shape.
It says that these are based on Rigid - Oxygen Permiable lenses which I have worn for many years. The Rigid lenses can last up to 10 years so I'm not sure how long these would last. My eyes tend to get dry at night and if I left those lenses in (they weren't designed for overnight) then upon waking I would have to put drops in my eyes to even remove them since they would literally stick to my eyes. It was uncomfortable when my eyes were more dry or when my seasonal allergies kicked in. These are a few things to ask your Optomotrist about. Dryness, halos, irritation.
Personally the cost sounds excessive to me. I can buy regular Rigid Gas Permable lenses (That aren't designed for overnight use) for $60 or less each and they can last up to 10 years with proper care. I still have mine from 1998 and they still work fine. After wearing them for a only a single year my eyesight had improved somewhat. Now, since I only wear them occasionally my eyesight has remained perfectly stable. I take BCP's and they cause my eyes to be excessively dry so I don't wear my RGP's as often anymore though. See if there's any mention of CRT's or ortho-k in the current Consumer's Digest. They may have some impartial evaluations of the product. These contacts are produced by only one manufacturer so you could perhaps wait until other manufacturers get in on the picture and drive the price down somewhat. Waiting won't hurt as once you begin you'll be using them permanantly.