I took the trolley tour and it was so convenient. They give you a place to park and tell you where to go and what to see. The on/ off idea is a good concept, if you're in a rush for time take the 90 minute circle, it is sufficient information. I would tell you though that all the rates for all the trolleys are different and there are those that are cheaper, so if you want to save the money take a different one, they all have the same concept. Also, we did the ghost tour, it was fun, however if you are able, take a walking tour, they will also save you some money. Savannah is very expensive. It is easy to spent alot of money very quickly. Also, have reservations for your lodging. When we left for Savannah everyone had availability, we waited till we got there and then had a hard time finding somewhere to stay, when we did, it was a good distance away from downtown and cost a fortune for a regular hotel. Do... eat at the Pirates House... it is inexpensive, the food is great.. and it really is haunted!
Pros: its convenient and informative
Cons: crowded, hot, and one of the bathroom facilities at a stopping point (not in connection with the trolley system) was extremely awful..it didn't have sinks!!! that is just nasty!