Per your other thread and about tandem towing, I'd be making sure which ever TH you are after, has a very good reputation concerning their frame with aftermarket receiver hitch add. Lots of dissatisfaction threads about Lippert frames have come up over the years.
Next I would be concerned about insulation value. Insulation works equally well for the summer as it does in the winter. Will that unit cool well with a single AC unit, or are two required and is that an option?
Since you already pointed out most trailers use the same "appliances", it really does comes down to the build.
