I have the fan on full, don't use auto mode and the front of the unit stays warm, where I sleep of course! If they had installed it about 1 foot further forward it would have worked much better. There are 3 ducts, on in the bath, one mid forward and one in the front, the bath is closed, the mid forward has a slit and the front is full open. Not worried about amp draw since we camp with minimum 30 amp.
Also running a 30 Amp circuit at my house for when we are not using it so that the AC can be run during the really hot humid days to keep it dry inside.
Of course I can just see if I can find a shorter cover for it too. It just clears the doorway and trusses with the cover off, and if I can find a cover that is less than an inch above the unit now, then I can do that for now and replace the AC down the road if I decide that the current one is just not cutting it.