I bought this box for our family vacation. I use it on a Honda Odyssey with Thule a Thule Rack. The Box is great and I am amazed at the amount of gear I can put in it. It seemed really huge when it arrived and I was worried it would dwarf my van. Once I got it on it looks nice. It functions well and was easy to install. I was able to put in on myself. I drove it empty for a few days to see how it did with road noise etc, and then added gear for comparison. It was quieter than expected and I didn't have a lot more wind noise than with just the Thule Rack alone. I did not see a big dip in fuel economy either which was great.
The one problem I have with this is in it's storage. The claws that grip the crossbars don't come off like my old box and I am afraid might not stand up to the wear and tear of placing the box on a shelf with even just he weight of the box. I had to rig up a way to hang the box from my garage.The box is bulky and storing the box that way was not easy. Another con is that the travel on these claws is limited and I had to readjust the crossbars to make it fit even at it's maximum spread. Given that the box has to be placed forward so as to not interfere with the lift gate, requires that I place the rear crossbar up about a 10" closer to the front than I like it to be.This means each time I move from carrying the box to carrying my boats I have to readjust the crossbars.
The reason I give it 4 stars anyway is because most of the other boxes have the same issue. For carrying a lot of gear this is a great tool!