A particularly modular and adjustable double stroller. It has always been very smooth and maneuverable. There's two seats that can be swapped, reclined, flipped backwards, or removed. It also has that universal mount that will fit lots of infant car-seats in either position (top or bottom). Its overall carrying capacity is fantastic, and it also folds up nicely.
You can read a longer review here: https://hellosensible.com/britax-b-ready-stroller-the-stroller-that-grows-with-your-family/
We've got all the cushions, inserts, and other parts. The only thing that doesn't work like new anymore is the leg rest for the upper seat, which used to have adjustable angle but is now stuck at the lower position.