You'll start out with about 3 month dry times and end up with 1-2 hr dry times IF you are using a crappy portable and pay attention. USER error and failure to change are the cause of most RV360 horror stories.
Using a CHEAP dual 2 stage porty with 25ft of 1.5" hose it is possible to leave a place with 2hr dry times using no air movers. It isn't fast. It takes TIME and EFFORT.
Given a decent portable (at least quality dual 2 stage preferably dual 3 stage vacs), reasonable hose run for your porty, and a knowledgeable user, the 360 shouldn't have any longer dry times than any other wand using similar equipment (a 100ft hose run from a Vortex on a 14" glided wand vs 75" on a M5 with 360 isn't similar). Air movers can be your friend.