Did a lot of research to try to figure out the best rooftop cargo box to purchase for 8,000+ mile road trip. Finally settled on this one based on prior reviews, size and price. Delivery was superb. It was scheduled for 7:00AM - 9:00AM and at 6:45AM, I received a phone call saying the driver will arrive in 30 minutes. Sure enough, the driver was at my door before 7:15AM and the product was delivered hassle free. On the floor, it appears really large and I questioned whether or not I made the right choice in selecting the XXL. However, once I mounted it to the top of my 2011 Nissan Armada, it was a perfect fit and allowed me to open the lift gate as well as the sunroof without issues. Loading was easy and we were able to fit all of our bags, for a family of two adults and four kids (3 teenagers and a pre-teen). On the road, there was no noticeable wind noise even with the radio off. Most of the states we traveled through had posted speed limit of 70 - 75 mph and I often stayed 5 - 10 miles over the post speed limit. The impact in terms of fuel was negligible and I estimate maybe a loss of 1/5 miles per gallon. This could be because of the added weight more so than the carrier itself as we had two coolers fully loaded inside the car, cases of water, juices and other items as well as the bags loaded into the carrier. Our road trip took us from West Palm Beach FL to Atlanta GA, St. Louis MO, Yellowstone National Park WY, Seattle WA, San Francisco CA, Yosemite National Park CA, Los Angeles CA, San Diego CA, Las Vegas NV, Grand Canyon, AZ, New Orleans LA and back to West Palm Beach. While driving through Wyoming, we encountered heavy rain and high winds. The carrier held up great. No water got inside and all of our belongings were safe and dry. On the way back, we hit heavy thunderstorms around Childress, TX and again, no water got inside the carrier. The only issue I experience through both storms is the impact of the high winds. However, this was also the case when driving through the mountains of Idaho, Montana, Washington, Oregon and California and is expected. To compensate, I decreased my speed and the wind impact wasn't as great. Also, loved the fact that it opens on both sides, so when the valet guy pulled up in the left lane and the passenger side of SUV was in lane of other cars pulling in and out of the hotel, I was able to just go on the drivers side and load from there. Also, safety feature that allows locking only when all latch points are line up and engaged makes it great and the fact that you cannot remove the key unless all latch points are engaged and locked is the best part. The carrier is flexible so depending on how much stuff is loaded inside, you can slightly twist the shape to make the overlapping top fit the bottom. To load on top of the car will require two people as it is long and has a bit of weight to it. Loading it onto the SUV was easy and took less than five minutes, once I pre-adjusted my crossbars. In conclusion, I do not regret my purchase and can't imagine how I would have been able to do this trip without the carrier as it freed up valuable space inside the car for juices, snacks, etc. and allowed everyone the comfortable space needed for this long trip. I highly recommend this rooftop carrier for the size, the price and the performance.