Have been pleased with our Hughes. It's one of those things that you really don't know how much it can help you, until you need it!
Our first time was in an older park in Montana. I was outside and two other campers walked over and asked me how we were keeping out AC units running. They say they could not, that the parks power was too variable with frequent dips of lower voltage.
I told them we had an Hughes Autoformer permanently inline, and had not even noted the lower power. As a test, I bypassed the Hughes, and sure enough, we could watch our lights dim frequently over a 10-15 minute period.
We lost our first Hughes on our trip to Alaska, as a park running of generator had someone mess up on what was sent out. The park was not yet opened, it was so early in the season, but we pulled in and asked if we could dry camp for the night. (In Yukon, right next to a river.) The park manager was getting things ready to open next week, so he said sure. (Pretty sure he pocketed the $10 we offered to pay for the nights say.) He came by later, and said he had the generator fired up, and said to go ahead and hook up. About an hour later, we heard a loud POP, loss all coach power, and started to smell burnt electrical. Unplugged, made sure no fires were active, then dug back into the cabinets where the EMS and Hughes were kept. We had the Hughes first in line. Bypassed the Hughes, reset some breakers. And all but he fridge came back online. Next day we backtracked to the previous larger down of St John's. A tech was able to get slot us in early to just do a diagnostic on the Norcold. Figured we might need a new control board for it, and wanted to get it ordered ASAP if it was bad. He looked things over, and said lets try a forced reset, jumped some circuits on the board, and all of us were pleased to see the Control Board come back to life. It had seen just enough of a spike, to try and shut down to save itself. Good for us, as it would have been 3 days to get a replacement in to swap out
We smelled burning melted wires for about three weeks. (Did not tear apart the cabinets to get the old Hughes out while on the road.).
We have a replacement Hughes now. On our dime, as when I talked to the owners of the park, who were remote, they said that they were not responsible for the damage. That the Park Manager was not authorized to open the park that early. Even asked me if I had any receipt to prove we are in the park, which I did not... Sparred with them off and on for about a month as we were traveling, then just moved on
I like the Hughes
Best to all,