I bought this sandbox for my 2 boys (18 mos. And 6 y.o). I was immediately impressed with the ease of assembly and quality of the materials. I was able to assemble the sandbox in an hour. The kids love it! The construction is very durable, they both have jumped and walked on the corner seats and sides and  we have had no issues with any of the sections coming apart. One thing I would wish to improve would be the size of the mesh cover, while it covers the whole box I really have to pull at it to stretch to each corner. All in all it's a great sandbox!