I have purchased several of these enclosures for various kits and found that they are ideal for amateur radio usage. The finish is good on both the inside as well as on the outside. The rib spacing on the inside allows one to slide either a dedicated pcb from rapid or one's own pcb into the enclosure, which is held firmly in place. This negates the use of spacers and additional nuts and bolts. The removable top and ends makes it so much easier to work on whatever is inside. I cannot find fault with their postal system sofar. Its top notch as is their customer service team. I am still shopping with them.