Actually, according to Morton's testing, the Turbro is a fair amount more efficient than the Chill Cube in BTU's per watts... though I have no doubt that the Chill Cube is quieter and has better temperature control.
I still wouldn't recommend the Turbro to anyone not willing to modify it as much as I did mine, though. One I would take a close look at is the new Furrion low profile with heat pump unit that *looks* to be the same outside unit as the Turbro but also *looks* to have fixed most if not all the issues I have with the Turbo, especially the ability to have a wired external thermostat.
Going to try and check one of these out in the wild to see how they perform. I have a brother looking to upgrade his Dometic and might give him my Turbro if it works as advertised.