The CubX is the trailer my kids needed (and I wish the cargo compartment was easier to use)
We use our Burley trailer every day in NYC, taking the kids all around town. Museums, parks, even just going to school sometimes. We commute with our bikes, so it's very convenient to be able to easily attach and detach the trailer, fold it up and leave it at their school, or use it as a stroller inside a grocery store. We recently upgraded from the Bee to the CubX give my growing kids a little more wiggle room in the trailer (those 2 extra inches per kid really matter!). We chose the CubX over the D'Lite because of the rigid plastic base, which makes it much easier for my little one to climb in and out. Our one complaint is the bar in the middle of the storage compartment, which the Bee did not have. This really divides the storage compartment in two, and makes it impossible to put in full-width items, and pretty hard to even get the kids backpacks in (you really have to jam them past the bar). Wish that wasn't there!