I've had a Baby Jogger City Mini Stroller for over two years now, and I can definitely provide some insights on its performance compared to the Chicco KeyFit car seat.
In terms of maneuverability, the City Mini is very lightweight and compact when folded, making it easy to store in my car trunk or take with me on public transportation. However, while it's quite agile in narrow spaces like shopping aisles or airport corridors, I've found that it can get a bit unwieldy in more open areas like parks or sidewalks.
Durability-wise, the City Mini has held up surprisingly well despite regular use. While there is some wear and tear on the fabric parts, the overall build quality feels strong and sturdy to me. That said, I've only used it for short trips and daily errands – if you're planning more extensive adventures, the rig might get tired faster.
As a car seat owner who switched to this stroller, my main concern was how well the City Mini handles an infant – in our case, it proved perfectly capable of handling our newborn's first few months without showing any signs of strain. The adjustable height settings and decent weight capacity felt reassuring too. With that said, the Chicco KeyFit car seat might still be more suitable for families with multiple younger child needs or more active outdoor pursuits.
Hope this helps you decide if this Baby Jogger stroller fits into your next potential gear upgrade!