I have just brought a Nipper 360 double (will be collecting tomorrow) I have an 18 month old and a 2 week old. So far I have used a phil and teds, was ok very handy and practical but wasn't especially keen on the set up. Have also been using a Jane Powertwin which just felt like a train, although doesn't measure much longer then the P and T and I could barely lift it into the car boot it was soooooooooo heavy.
So have now gone for the Nipper, have been through the archives and seen lots of good things but anyone got anything bad to say about them, while I still have time to change my mind.