Have owned a Zafira now for 5 years and its fine for getting from A to B. Functional but not pretty. Huge blind spot by front windscreen pillars. Throws a wobbly in snow and will not drive anywhere, even with winter tyres on. Not great with going through standing water either as air intake seems low (bitter experience!)

Seat set up appears fine but is nearly impossible to get children in and out of rear seats if there are car seats in middle row, found older children had to climb over the backs of the seats to get in. Also storage room and boot space are tiny when all the seats are up. Safety of those in the rear seats is questionable as well.

Overall fine for running about but would not recommend for families with more than 2 children.

We're on our second Zafira. They do the job of getting several children around, + friends, + dogs, + camping stuff/watersports equipment, all sorts of clutter fits in. They are not exciting, you can't really fall in love with this car.
Also we lose it in the supermarket carpark because they are so common. But for getting around with several children, it's fine. No real complaints.

We've had a zafira for three years. It has been pretty reliable, there plenty of room in the back and it is a reasonable drive.
On the downside it has a whopping blind spot where the pillars holding the windscreen are, you literally have to lean forward at roundabouts. I found it very poor in snow. Most concerningly the seats that go up in the boot are not part of the, otherwise excellent, safety ratings. A quick google on YouTube for a crash test will have you refusing to ever let your children ride in those seats again. I wouldn't buy another one.