We really like ours. We find it quiet inside and outside. It's under our bed, so
there is a hum under the bed, that may bother some people. Most of our trips are in the spring & fall so the heat pump function sees as much use as A/C, so saves on LP gas consumption by not using the furnace as much. It has a switch, 50A or 30A modes(1 compressor or both) so it can be used when only 30A power is available. Less clutter on the roof & lower clearance required for the RV. We have never had any issues with ours. It's a Coleman unit.