I purchased this tree for Christmas 2021. It's a beautiful tree. This  is the 4th year we have set it up and the lights in one section have dimmed to almost dark. Because it is just one section (in the middle) it's particularly noticeable. I will probably use it just this last time and then call it quits :( It was great for the first three years, but I would have expected to get more use out of it before it began to decline.