I watched the videos so I felt confident that I could replace the window assembly. The part arrived soon thereafter. When I disassembled the door, I discovered that the door seal and the inner seal (a short piece of fiberglass rope) also needed to be replaced. I suggest that you plan on replacing both of them if your stove is over a few years old. I purchased both locally for expediency for higher prices. The repair went well.
I also suggest that you be prepared for some extra cleaning (EZ Off or similar plus 409 type cleaners). While the door is disassembled, you will probably notice areas that need special cleaning.