Not worth the trouble and the cost
We got it so we could have our dogs in the back with plenty of space for a 7 hour trip. It was a struggle to get on the roof. We drove for a few miles to test it out and the straps are noisy even though we had them as tight as we could get them. Loads of drag on the car which kills your gas mileage. You can't put the straps straight through the front windows or else it touches your head while driving. Not the right thing for us. After all the work to try it out, we ended up not using it and had to figure something else out for our stuff.