FYI since posting this I've spoken to a number of SoMa people, some on Facebook (Soma Lounge), who have had positive experiences with Carvana, for both EVs and ICEs.
I looked at them when I was in the market, but ultimately went with a dealership. Not fun, but ultimately saved $2-3000.00 compared to Carvana prices for same car, trim line, mileage etc.
Any feedback would be appreciated, especially if you've purchased an EV from them.