Shed was easy to put together.  I had help from my son, as it required another to hold roof panels in place from the outside while it was secured from the inside.  Following step-by-step instructions is important.  Not all holes were pre-drilled in exactly the right place … close, but not exact, such as on windows and skylight, which is why we caulked around them to make sure they were water tight.  Different parts (assembly hardware) were in numbered bags, but the same parts had different numbers.  This was misleading, as when the part number needed wasn't in the box, it was thought the part was missing, when it wasn't; i.e., there was an extra bag(s) with the same number as something else, which was usable for the "missing" bag.  Shed looks good, and will enjoy using it.