Provery very good
Contrayou still have to pay
ProCheaper by far.
ContraMust book first.
Contrayou only get good service sometimes
Proquick way to travel around London
Contracan be expensive
Provery easy to find a cab
Contraif you don't know where you're going you could be ...
ProSafest from of travel
Contrathey are often very busy
ContraAggressive, rude, dangerous