Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Works well on my Mercury Mariner

I'm pleased with this purchase. It is a nice compact way to easily access items stored on the roof rack of my Mariner Hybrid. I'm starting to get a little old to try and balance on the door frame while removing skis from the rack. I didn't expect a carrying case, unfortunately it doesn't fit unless the step is as low as it goes and while not difficult to adjust, it did require a wrench and a few minutes. Not something I want to mess with when arriving at my destination - thus minus 1 star.