I want to love this product, but there is one very serious flaw. I purchased the starter set and this extension. I first installed the starter set, then went to install the extension. The templates do not correlate together at all. The only way for me to begin to fix the problem is to take down the entire starter set and start over, but I have no idea how to line it up correctly so it works properly. Why don't the templates line up so I can properly put on the extension? Secondly, I now have to go out and purchase more command strips before I can even begin to fix the problem. All this on my kiddos birthday. The idea is great, but the instructions receive a FAIL!