I have the child seat also, it works well as I had both my god kids use it. Ones is 3yrs old and the other is 6yrs and it was good, I used it in conjunction with the canopy as it acts like a roll cage. The bullitt is pricy but in my opinion it ticked all the boxes. Let me know if you want any photos of the seat/canopy? London green cycles is great for cargo bikes, especially the stuff centred around family transport etc. Saying that mine was from Sbc cycles who were great and both the lads there are bullitt owners and have family's, they gave me great advice.