As Ray says we have been running a Welcome 85 since early 2007.
We've had very few problems over the whole period.
Worst incidents were Fiat cab related and put down to normal teething troubles and all put right during the warranty period.
As for the Chausson part of the equation it has been more or less trouble free.
We have added some 230v sockets as Chausson were a bit stingy with them. If you are going to use a LCD TV then the dedicated TV locker is a bit useless. I converted mine to a bottle and glass locker and stood the TV on the table where it took up a very small footprint. Now I have installed a small 10" unit under the original TV locker where it is permanently sited.
The table is a bit unwieldy. The table top is very light but the steel works underneath weigh a ton. I have removed the sliding part and fitted a single leg to reduce the weight. It can still seat 4 people comfortably.
It does come with a small oven which works well (OH has produced several Xmas dinners with it) and the grill, once fully warmed up, produces excellent toast.
Check the wood structures under the bed area to make sure all screwed joints are tight. Make sure the two rooflights above bed and bathroom wind up and down properly. Make sure the under sink and kitchen drawer are damage free. Originally there was a waste bin fixed to one of the cupboard doors, most owners remove it as it's a nuisance and a bit unhygienic.
The fridge/freezer is a good bit of kit check that the power source changes from 230v/12v/LPG automatically.
Check the window rubber seals on the 2 sliding windows to make sure they have not been displaced.
We did have one roof leak when the side roof capping let rain through during some monsoon-like weather (repaired under warranty) so check the wall boards at the back of the inside high level lockers.
Any other info you need send me a PM after you have signed up as a full member
BTW there should be a proper spare wheel under the chassis.