Just that, really. I know there's a list on BeSafe's website of what it's been tested with, but I'm interested to know if anyone was brave/crazy/sensible (delete as appropriate) enough to use the seat on a buggy that hadn't been officially tested with it.
I'll have a newborn and a 2.5yr old who likes napping in his current BJCM. The Phil and Teds doubles look closest in style to that, but I'm overwhelmed by the choice. I've read that the City Select is brilliant, but so heavy that after about 8 months it becomes unmanoeuvrable if you have two kids in it.