I couldn't recommend the 3500kg Carthago C-tourer. My 2016 model is clearly built down to a weight. The kitchen drawers have been readjusted several times as the frames have settled, and high locker doors have needed adjustment to line them up. The lighting was illogical and had to be rewired: it's fine in the showroom to see a dazzling array of lights, but off-grid you need to conserve batteries using area lighting.
The 'bathroom' is tiny, the throne high, and the shower fails the dropped soap test. Soap-on-a-rope is essential, nowhere for the shampoo. And the vacuum moulded shower tray has cracked, revealing that the plastic is only 1mm thick.
If the 230v
fuse on the Truma boiler blows, the exhaust pipe, water pump and filter have to come off. Brilliant design!
I have no experience of the heavier Carthago models, some of which I know have larger bathrooms. I've owned 5 other vans since 1985, they've all had faults of course, and it seems that the more sophisticated they get, the more are the compromises.
At least the driving experience gets better with every newer model, and the Carthago is no exception.