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Updated
The B-Ready is a versatile stroller that can accommodate each family's different needs. It has up to 12 different seating options and works with other baby travel products so it can act as a travel system.
SpecsUpdate
Pros
Pro Not a double stroller, but offers double seating
Sort of like a bunk bed, the Britax B-Ready can carry two children at the same time. Usually, the older child would be placed at the bottom seat while a smaller car seat can be placed on the upper level. This is better than a conventional (side-by-side) double stroller since it takes up less floor space.
Pro Can accommodate car seats and bassinets
This is a travel system stroller which means it is compatible with other baby products such as car seats and bassinets without the need for extra attachments or adapters. All you need to do is to put either the seat/bassinet, click it in place, and go.
Pro Good value for money, since the stroller "grows" with your child
The Britax B-Ready is a bit on the expensive side, but you will get the most value for your money. Because of its 12 versatile seating options, this stroller can be used from birth up to when your child is bigger, avoiding the need to buy different strollers as they age.
Cons
Con Their B-Safe car seat had a big recall due to a choking hazard in June 2017
This issue was fixed in newer models but is still worth mentioning since your baby's safety is one of the most important things to consider. This is not directly relevant to the stroller, but the car seat should be compatible with this stroller so it might affect the buying decision.
Britax's safety notice
Post on CNBC.