I used to have a Mountain Buggy and sold it to get a Phil and Teds Explorer. I only have 1 child now but sometimes use the doubles kit with mu nephew and friends' toddlers. Obviously it is harder to push when it has 2 kids but its still very easy and turns very well. I like the features of it better than the Mountain Buggy and would highly recommend it as a double stroller!
Annie- SAHM to Flynn, born February 2011.