Snorkmaster,
I'm glad that you enjoyed your trip to my former home town. Years ago I interned at what is now the Renaissance Hotel (it was formerly Stouffer's). The Sans Souci is a comfortable, friendly restaurant. Certainly some odd choices on the menu, but I've always liked it.
Guarinos is indeed a blast from the past and it's sort of an "event" to eat there. Even if the food isn't the best on earth, it's like going back in time.
The Mallorca is nothing other than vile. Not much of a Spanish community in Cleveland, I'm afraid. There are other good restaurants on the same block--perhaps you can try them on your next trip.
Drop us a line on FlyerTalk before your next trip--we can recommend some more activities and restaurants.
Mats.