I have a 5008
It's a 2L diesel (140hp ?)
Wasn't my 1st choice but needed a MPV quickly and it was CHEAP. I was very wary of Peugeot but we'd hired the Citroen version on a holiday and quite liked it apart from the wallowy ride. Peugeot got "decent" reviews overall and rides firmer.
No problems in 3yrs - apart from when I hit a deer
Runs fine, is pretty quick, does 40-45 mpg and carries even biggish kids in the back quite comfortably (haven't tried 6ft blokes !). Drives OK IMO - soft when fully laden, quite firm when not. Does tramline a little bit. I test drove a SMax and very little in it when unladen - neither's brilliant; this bollocks about being a drivers car is, err, bollocks when you're buying a 7-seat MPV (apart from the super sporty SMax the 1st garage got me to test which had about 175hp petrol engine, low profile tyres, sports suspension and all that. Great until you hit a rough road).
Peugeot were discounting very hard when I bought it as their reputation for reliability was kack - probably still are. Loads of extras on the model I got for way less than the basic models in competitors ranges. I assume resale will be shit but I'm expecting to keep it for long enough not to matter (or until the much-predicted catastrophic electrical failure)
Would those ^ up there who seem to know the car let me know what problems I should expect, esp if I can prevent them ?