We have the stroller, seat, and an extra base for our second car. The seat is very safe and amazingly easy to adjust. The stroller is our favorite - It adjusts to lay completely flat and if you turn the foot holder up, it is almost like a bassinette inside when the child is little. Our daughter is now 28 months and we still use this stroller all the time. The infant seat is heavy, but they all are. It secures easily and well to the stroller. We love this entire set and will use it for baby 2! Just keep in mind that the infant seat, like most, is large and may not fit easily in a small car.