Graco Nautilus 3-in-1 Car Seat Review
Converts from a harness booster to a high back booster to a backless booster that accommodates children up to 100 pounds and 57 inches tall
Extended 5-point harness allows children to remain harnessed longer
Price is very affordable in comparison to other convertible car seats
Comes in 6 colors
Seat cushion is machine washable
No rethreading required to adjust harness
Cannot be used rear facing or with children weighing less than 20 pounds.
Is fairly heavy (26 pounds) as a result of steel frame, thick foam, and other features.
In-between leg strap has been cited by some parents as being hard to position.