Useful thing. My 2 yr old can sit or stand while I push the baby in the buggy and it’s not too difficult being the pusher (although obviously there is less room to walk). It helps that it’s off set to the side to give you a bit more space. Easy to take on and off. Can’t believe they are £90+ new but got mine for £60 incl postage 2nd hand and reckon that’s just about ok.
Perfect for bringing 3yo with baby on walks. Clicks up when not in use so it’s not so much in the way. Nice and sturdy as is the bugaboo pram. Just have to get the right adapters to fix it on.