I love my Marco Sky.
It is so practical. It's not as light as some of the buggies, that's cos it has solid wheels. That would be the only thing that I would change. The wheels would be air filled, cos they push really easily and well.
I can get into the smallest shop with it. DT2 loves looking out at people and gave up his fascination with DT1's hair a long time ago.
Love it love it love it love it love it!
(I have been told that the wheels can buckle if bashed on kerbs etc, but it has a little step bit, you step on that and the buggy tilts so that it can go up kerbs easily....phew!)