I am not a huge fan of the older MPV's..
But the Zafira's Flex 7 is a pretty good setup, the car itself is pretty reliable and it handles 'ok'.. my brother had the GSi for a while, and although not the most communicative chassis, it hustled along well for a bus..
The Picasso is quite poorly built inside, but it does the job, it's suspension is way too soft, and the engines are very underpowered, but I'm led to believe the are actually reliable for a french car!.
The Uglipla is not my cup of tea, it's way too wide for it's own good (nightmare parking, and it's weird having someone sat between you in the front row!), and it's pretty unreliable... we used to get them as hire cars and they where universally hated..
I know people don't get MPV's and I can see some of the points against have some validity, but the new gen of MPV's handle pretty well, go well enough and do allow some 'driving' pleasure for the petrol heads amongst us!..
In fact, to augment his M5, my brother has got a VXR Zafira for the family, now it's remapped he actually admits it's more 'fun' in the Zaf simply because it keeps up (or in some cases pulls away) with any hot hatch, and when it comes to the twisties it handles well enough for them not to catch him up! Well that and the fact he finds driving the M5 in the wet/on poor road surfaces hard work!..