thank you very much for your feedback! I'm sorry that the size of the trailer did not meet your expectations. But why would you expect an american trailer in Europe? Compared to average trailers in Europe, this trailer is very large. Besides this, there would have been plenty of photos, showing the dimensions of the trailer pretty well.
The water supplies were described in the ad, as I wrote, it's not an appartement :-) it's a trailer. Are US trailers permanently connected to fresh water and sewer? I doubt that, because it would definitely reduce their mobility.
In summer, aluminium sunshades block wifi - lift sunshade a little, get good wifi ;-) you simply should have asked.
Maps says 18 Minutes from our place to the MUC terminal (I agree). Means, just follow the roadsigns to the airport. Which way did you go?
Again, sorry for your inconveniences!
All the best