My intent is to use it all the time ...... but we shall see. I called Hughes tech support to discuss this and they said that they would use it always. They said there is only one "moving part" involved and it is a relay that activates when the voltage drops to 109 (IIRC). So if the voltage drops while I am away, the unit is supposed to do its 10 percent boost thing.
It has built-in surge protection but if it gets zapped (or as they term it "used up") a new surge assy can be easily installed by the owner with just a phillips screwdriver ......... they say. IIRC the new surge assy is about $30 or $40. I plan to order one of these to have on board.
The unit also checks that power is OK to plug in but I intend to do that with a separate checker there at the pedestal before plugging in.
I have read on other forums that many use it this way although a few only bring the autoformer online when needed so as not to "wear it out".
If my approach doesn't work out, I will sure post with any issues.
Good times and safe travels, all.
Edit: I was typing and missed Don's post. Same with me. Voltage was bopping around at about 100v at an Idaho campsite. Many came in, ckd the pedestal and then left but where to?.....all sites in the area were filled up. My daughter and kids were there 3 days and the voltage with the Hughes on line was in the 110v range....not great but OK. I believe air conditioners and other inductive loads $uffer damage below 106?
