On the plus side the box once assembled looks good for a relatively budget box and is performing the job I required.
On the negative side the small bolts that are used attach the base and the top plate to the side plates are very short and only just catch the nuts they screw into, they are effectively one shot use. If you need to remove the top plate to gain access after assembly the bolts will be scrap and need replacing, fortunately there are some spare bolts in the kit I had.
Another negative is that there is no electrical continuity between the components which if you intend to put mains voltages in the box is potentially dangerous. As I was constructing a power supply one of the main components was a transformer from 240v to 12v so this was an issue for me. To get continuity I had to remove the paint from all the jointing faces in order to get an electrical continuity and enable the box to be earthed, not ideal.