To be honest, you'd be better off with a stroller and a buggy board. We have both the city jogger double stroller and the bugaboo bee with board and I must say that the bee gets used so much more than the double stroller for the following reasons. The double stroller swallows up nearly the entire footpath when we go for a stroll forcing everyone else onto the road (and it seems pretty rude to me to force other pedestrians onto the road). Also one time the footpath became so narrow that one of the wheels became airborne and then the stroller with my two LO in it keeled over onto the road and my husband and I were frantically trying to get them off the road and out of the way of the incoming traffic. I still shudder when I think what would have happened if I had gone for a walk without my husband there because I would not have been strong enough to hoist that thing with my two children strapped in it off the road.....horrible experience.
Secondly, it is a huge beast of a stroller in tiny HK, and people have to 'get out of the way' whenever we have taken it to the malls and tried to get into cafe, restaurants ect, to the point it becomes a little ridiculous.
Thirdly, we seldom take public transport and when we park in the car park, the double stroller is too large to get between the teeny tiny spaces between cars (bee manages fine) and we end up having to walk for miles in a huge detour to get to the elevators.
On the plus side, we travel a great deal and a double stroller is fabulous as we can go out all day with the stroller fully loaded up with bags, snacks ect and the children can have their naps in the stroller, and its a really fabulously smooth push. But for HK purposes, the city jogger is not so great.
My two cents. Hope this helps you make your choice.