Owned an MDC Cape York a few years back, purchased new and cost us heaps to fix up with only verbal support from the manufacturers. First failure was the brake drum seals, with less than 500klm on the clock they didn't exist, the axle contact area was like sandpaper. Had to have rings made and bonded to create a new surface for an undersize seal. Second big problem was weight distribution, so much of the stowage is forward of the axle, hitch weight gets out of control very fast. We would never buy one again.... it's made in China!
I have a test, it's called 'The screaming kid test': You've found a campsite, your tired and the kids are winging, it's raining cats-n-dogs and food is the only thing to shut the kids up. From parking the camper in position, how long does it take before you are dry in the camper with a hot brew started? You don't have to fully rig the camper or even un-hitch, that can happen in the morning, but everyone needs to be able to sleep out of the weather. It's a very interesting test, the MDC Cape York would take about 2 hrs, our last camper, a Complete Campsite Exodus around 3 mins! Yes there is a very big price difference, but the principal remains the same and will have a major impact on how long you'll own the camper. And... if the Salesman says it'll only take 5 mins, get him to prove it.