you will be using your Tako City Move for about 2 years, based on my experience with it. The seat is quite large and bulky but not brutally spacious for a 3yo child. If you're not too demanding, and your child is not on the large side, it might be you can use it till 2.5 - 3 years of age.
Here, read this article about the right time for your baby to pass into the seat unit/pushchair version to have more information about that stage. Usually, it's around 6 months of age, but depending on your child's needs, it can be sooner or later, even. The City Move's bassinet is rather large so you might be able to use it up until 9-10 months of the baby.