I had an 1996 Autosleeper Duetto and the quality was great, it was just the Transit that let it down. I now have a 2010 Autosleeper Duetto and the Transit is great it is the Autosleepers conversion that lets it down. They went from pretty much the best build quality to pretty much the worst.
I am still repairing and replacing bits of the interior. There where several bits missing from my van that all the other 2009 -2010 vans had, but the fixing holes for them were not there: 1) fold out divider on the back of the bathroom door.
2) Water proof trim around the top of the toilet.
3) Several pieces of cloth finishing.
4) The heater should have been dual fuel but was only diesel. When I phoned and asked why they were not fitted I was told that they did not have the right parts so they just deleted them off my van.
Next I needed some spares for the trim, after several phone calls I was told that none were or ever would be available. A friend of mine is a chippy and when I was trying to fix the bed he arrived and had a look in the van. He thought it was a poor quality self build because of how bad the woodwork is.
The joints are terrible they had not countersunk the screws, they were just driven in screws until the ends of the wood had split. Also the front legs of the bed were screwed up into a piece of 18mm ply, but the screws went between the layers so had just split the wood apart. The covering of the cupboard doors was coming off.
The one side window had a 10mm gap in the sealant at the top and was letting water in. When I took off the inspection cover to check the water heater and eberspacher, the chamber had loads of saw dust in it that had not been cleaned out, this is where the heater sucks its air in from. The list goes on.
I will never buy another Autosleeper again unless it was cheap enough to be able to upgrade all their cost cutting, and repair the awful workmanship.