Roatan has walls just like Coz but with more fish and less vis and current.
What kind of divers will be there depends on what groups are staying there at the time. Some dives are guided so quietly tell the DM to keep an eye on your wife.
Not much there in the way of shore diving except for the plane wreck in the boat channel where the viz is even less. They did take us to Tabinana (sp?) beach once and the shore dive there was great.
If you walk out of AKR to the road, turn right and walk a few hundred feet to a botanical garden on the left that is a nice place to off gas. Bring drinks and bugspray, it gets hot away from the beach!