This is a JFYI to anyone on the fence like I was prior to buying the Rosie.. It WORKS!
I am using the latest Rosie firmware. (i had not tried it with any other firmware, but had read there maybe issues with my 2006 Quiet Diesel Genny in the motorhome) It was set to use 26AAC which appears to be the maximum. (my genny is only 120v x 2 so I could not get double that) as I would when connected to 240v from Shore Power or I my genny supported 240v Split Phase.
-Bill