The quality of the individual parts is quite low. Not the best fit between the two, but a little tighter once you screw in all the fasteners. Mine appears to have arrived in used condition. Lots of dents, dents, marks, scratches etc on arrival. Poor packaging may be to blame. Nothing interferes with functionality, so I agree with that. It does NOT include rubber feet or dampeners which were very important to me and the surface I put it on. I had to glue it myself. The instructions are generally incomprehensible, although you can find out quite easily. Containers are not as strong as we would like. They are quite flimsy and tend to run into each other as you slide them along the rails. This is particularly annoying as the smaller red containers can barely fit 8 in a row. I would prefer containers that are 2mm less wide to leave room to breathe between them. I may end up donating a trash can from each row to help alleviate this headache. I still give it 3 stars as it's pretty cheap and probably good enough for most (myself included). Know that you get what you pay for here.
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