"BUT, to get that boost, it will rob from other campers"
NOT TRUE! Below from Hughes AutoFormer web site.
"The Autoformer DOES NOT take power from the park.
It does not affect the park or input voltage, or make electricity.
What it is doing is changing the voltage – amperage relationship, lowering the amperage and raising the voltage. Since appliances run better on higher voltage, lower amperage, less overall power is used from the park, and better service is enjoyed from your RV
An Autoformer running at full output (50amps) will use 1 amp, but will cause appliances to cycle more often and run cooler. This will use less total power from the park."