Here's the first review I've seen, with more coming after they complete a week of "real-world" testing.
https://www.thefitrv.com/rv-reviews/...thium-powered/
In comments and Q&A section the reply about the need for solar is exactly what I've been thinking. James estimates that 30 minutes of fast idling will produce as much electrical energy as solar in a week, so what's the point? He equates it to dumping a gallon of water in a swimming pool -- you have more water but does it matter? Since we move around often, solar in this type of rig would be a negative.