This BabyZen YoYo2 is truly amazing. It is an engineering marvel. It weighs a mere 14lbs and comes out of the box complete with no building required apart from attaching the car seat adapters and new born package. We are currently using it for our 5 day old baby. He sleeps so comfortably in the 0+ bassinet package. It is the perfect size for maneuvering in tight spaces. I did many months of research and this was the only one that met all our needs - lightweight, fits in car trunk along with groceries, works from 0 to toddler, has a decent basket plus a bag on wheel accessory and takes a car seat.