I think the Mariner has different type machines than the Voyager (whirlpools, I think although it's been a couple of years since we've sailed on the Mariner) . . . larger capacity and the laundry rooms are bigger as well BUT not on every deck. Also the location in near the front elevators as opposed to behind the rear ones on the Voyager.
Someone who's been on the Mariner more recently will have more recent information . . .
Hope this helps . . .Peggy
