Yep I have the explorer and it was crazy trying to get DD in and out and buckled when DS was in the toddler seat on the front. You literally have to be on your knees hold her one hand on her lower back, one on the back of the neck and ease her in and out. It was ok when I was putting her straight in from the car or at home because then obviously I can just put her in first, but when you are out and about and she wants a feed or just wants to be held its not like you can get your toddler out, ask him to stay still while you take the seat off - get her out-then put the toddler seat back on one handed. Mind you it is a minor inconvience that is outweighted by the good points of the pram.

We got the "hammerhead" toddler seat because we wanted it to be able to recline and have a sunhood and now DD goes in that. She cant sit up by herself but that seat reclines enough that she doesnt have to be supporting herself.

HTH.