I bought this little trailer all of the way back in 2015 to pull behind the Subaru Forester I had at that time. It was $250 from Harbor Freight and I spent around $250 more to put 3/4" plywood beds and sides on it. Since then we've made hundreds of trips to the city yard waste disposal area...
Harbor Freight US General tool boxes. Essentially a Chinese knock off of a Snapon box for a fraction of the price.
Personal opinions on them? They generally have good reviews, but the negative reviews usually have to do with wheel failure. I have to get a rolling box for school in the next...