This is fantastic! I might just spring for one even though I have MTH engines and DCS, would be a unique shelf queen.
I am assuming this is an RF linked engine that can run on the DCS 18V rails (I know the DCS won't control engine but the rail voltage will be there though you can dial down TIU voltage in another mode)
BUT being a negative Nancy, who will repair these when they break, and future replacement supply parts? (think how hard its been to get parts for some Lionel and MTH accessories years later)