Britax Car Seat Travel Cart

"5.0 out of 5 stars" - *** UPDATE *** May 2012 - Used this on trip to UK - awesome, stuck at airport for 10 hours with broken plane, wheeled my sleepy daughter all over the place IN the car seat ON the trolley. Never once tipped up with her in it (possibly because she is 45 lbs!). VERY sturdy, not at all cheap like some people have suggested, my one is tubular black metal and strong. Was awesome for the plane too, wheeled seat through parts of the plane, then lifted over seat back while still on cart, removed cart at our seats, stowed it quickly and easily in the overhead compartment - checked first with flight attendants who said definitely put it in there as there was a dip and it settled nicely there, would only have come out during a crash I think (and we had some seriously horrible turbulence both ways, not pleasant at all!). So, my 5 star rating and all of the below comments still stand - only thing I might suggest, if you're gate checking, perhaps get the Britax wheeled bag so your car seat stays dry!I have to say that Britax car seats are far superior in my opinion to any other brand for safety alone - but also because they have a different tightening system for the LATCH system and can be moved in less than 10 minutes from car to car.The one thing I have against them is that they are so heavy, not that they are the only car seat that is heavy, they're not. So, when I saw this cart on the Britax website I thought I might as well try Amazon because they were bound to be cheaper and I was right.The cart arrived, well packaged and was super simple to open up and is very strong - it holds the car seat easily and even with a child riding in the seat, which when rushing through the airport is very handy, and my daughter weights 42 pounds.It folds up very small, so will fit in a car easily and into overhead bins on aircraft almost always (the smallest planes maybe not).This is the ONLY way to fly with your car seat - ours is usable on the plane for extra security and comfort for our daughter and even if we didn't we can gate check it easier this way - but if you're planning to gate check and not use the seat in flight, then I suggest wrapping the car seat in a clear plastic bag or something similar as they sometimes leave the gate check items out in the rain and a wet car seat makes for an unhappy child.All in all, would highly recommend this - we have the original britax Frontier seat and it is perfect for it - would also mention as an aside that if you have a Frontier with a damaged seat cover, call Britax, you might get a free one under warranty.Thanks Amazon - great deal, great item as always!