I have had my prelit, 8' Balsam Hill tree for 3years now and love it. This year, I had to replace a plug fuse and all is lit so no problems (yet)! Took me a bit of troubleshooting to find if-and-where to replace the fuse, but with some patience got it done. I was very troubled to see from the reviews that Balsam Hill is no longer offering replacement bulbs for "older" trees and telling customers to "just string some lights over the unlit section" on a $700+ tree investment. The fact that their bulb base is unique, is all-the-more upsetting. I suspect they are not making the incandescent bulbs any longer due to the takeover of LEDs. One of the previous reviewers had a GREAT idea of replacing the bulb only, but keeping the base (easy to do by carefully manipulating the wires that run thru the base). (Or) take all the bulbs off the tree and list them on Ebay... from what I see, you can probably make enough $$ to buy another tree from a different company.