Germany took over production in about 2010. You will recognise the German vans as they are taller at 226cm and no longer sport the white top 1/2 over silver bottom paintwork.
These later vans seem to van two main problems, poor quality timber in the cabinet work resulting in hinges working loose and dodgy touch lights that now seem to have been rectified. More though has gone into them and in other areas they do seem better. Other electrics spring to mind as the French seemed to have a Friday afternoon approach to wiring vans.
The cabinet work on vans built prior to the Germany move are better, but some unlucky folk have experienced damp issues and rusted frameworks.
Earlier vans from 80's and 90's seem to be the best built, although the could be due to owners having sorted everything out over the years.
My 2003 van was probably the best put together, the 2006 Familia had a few gripes easily solved and the 2007 Troll likewise.
If I was venturing into Eriba ownership now i would try and buy a van from around this period with the highest axle rating you can get. Give it a very good going over for rust around the bottom edges and any water stains on the inside wall board around windows and in line with outside waist trim and gutter/awning track . A useful tip as to how the van has been stored is to look at the condition of the outside rubber trim. If clean and bright it implies it has been stored under cover or been cleaned on a regular basis.