I have a business trip to Charleston, SC, in October and need a centrally-located hotel. Last time, I stayed at the Embassy Suites in the old Citadel building, and it was excellent. But this time around I'm looking for a full-service property in the Marriott family. I'm trying to decide between the Grand Bohemian and the Renaissance. Any tips on what to expect at either of these properties? The GB is more expensive and requires a deposit, but I am intrigued by the GB properties and their uniqueness and art, etc.