It's hard to find a big cage with 0.5" bar spacing for smaller parrots. This thing isn't just big, it's monstrous. The assembly directions are very basic, but it's not difficult to assemble. Having a second person would be helpful, but I was able to put this together on my own in an hour or two. It rolls very easily despite its size and weight. The construction is far superior to the current multi-piece cage I own; it's not wobbly in the slightest. Very happy with my purchase and excited to move my two cockatiels into their new home!