Conclusion: The Britax Frontier 90 is a worthwhile investment, reviewers say. The harness-to-booster seat has a long life span with some of the highest weight and height limits on the market, and it's a snap to install using the new "ClickTight" system.
Pros: Converts from harness to booster seat, Easy to install, Front-adjust, no-rethread harness, High weight and height limits
Cons: Heavy, bulky, Seat-cover fabric can separate from base
Britax Frontier 90 Review: Photos, Videos, Features and ClickTight Installation
3 May 2013
Conclusion: With a return to seatbelt installations inevitable for high weight harness combination carseats, the ClickTight system on the Britax Frontier is just plain awesome. The trickiest part of using it the first time is simply locating it behind the cover!
Pros: Generous 20.5″ harness height, best in class!, Front height adjustment usable even when installed, ClickTight system seatbelt installations easier than LATCH!, Deep side impact wings for head and torso (photo, right), Reasonably tall booster mode provides good fit, EZ-Buckle keeps the harness buc...
Cons: Harness adjuster hard to find at first for short fingers, but this makes it hard for kids to inadvertently loosen themselves, LATCH limited to 40 lbs., but who needs LATCH with ClickTight?, Relatively large and heavy, as are most combination seats, Relatively expensive, Not suitable for pet use (...