I am very pleased with my kit so far. I bought the cajon kit as a Christmas present for my son, so we have not built it yet. Placing my order was easy and my order was filled quickly and accurately. I opened the box to check the parts and they were securely packed and seem to be made well. I am resisting the urge to build it and give it to him assembled.
I was a bit surprised by your attention to customer satisfaction. It is unusual to see that interest from a vendor, either on-line or face-to-face.