I am writing a review because I so do not want to leave the only other review that is here at the Advent. I myself had the calendar last year and was absolutely happy with it! Also with me there were windows that were not filled, but it quickly became apparent that the contents were only slips, which is not surprising in transport in the package with the different severity of the goodies. The contents were high-quality, versatile and absolutely worth the money! I would draw back to this calendar.