i booked with cruise connection and they said i get one also. bestcruises.com promotes it also on their home site. i dont know if they ever say what the coupons are good for though. another post i read last fall said it was for things like 1 free photo, second person on a expensive tour 1/2 off, rental on walkie talkies and things like that.
basicly they said it was full of things that would not be of great value on its own. it depends on what is of interest too you whether you will use the coupons or not. supposedly it will be in the cabin i get on the ship. i will go through it and find things i want to use. i hope this helps.