From a review standpoint:
I have an earlier run of the Caboose, the Norfolk Southern that I body swapped with the Veterans paint scheme caboose. I took out the window in front of the camera on mine during the body swap. That said, I do not use it often because of the waiting for it to stand up a wifi network, connect your tablet or device to that network, and then begin streaming. That coupled with the low frame rate or resolution tradeoffs, and generally I just wish I had gone to a dedicated 5Ghz camera and receiver setup many drones use. I could get way better frame rates, more easily connect to a large screen TV, the list goes on an on. Again, it's not like better cameras, better transmitters, and better formats do not exist. You add that to the window reflections and distortion problem, and sorry, but DIY can do way better than this manufactured version.
I hope you enjoy it- you bought and paid for it already.
I don't see how somehow Lionel resolved the previous problems. It would require custom window or other details using different lens glass, and a cost, let alone a different camera module.
I'm not trying to be overly harsh, but I refuse to call something good when it isn't.