You asked for disadvantages and people got on an air conditioner thing. I have a 32' Winnie and tow a car behind. One disadvantage is finding a gas station where you have room to fill up and leave. These would be stations that do not have the pump lanes perpendicular to the street. Another is making sure that you leave enough room when you turn as the back end swings more than you might realize. There are advantages and disadvantages to every unit, but in most cases the advantages (like roominess) out way the disadvantages.