Our cats love their new window shelf. We were looking for something to connect their dome to the window, because our five month old kitten kept exploring the sill and either falling off of it or needing help to get down. This shelf meets our needs exactly and is the new favorite spot for both cats on our cat wall! I was also very thankful for the seller's help while deciding which shelf to get. I couldn't tell which installation technique would work best for the placement on our windows, but they responded quickly and were able to recommend the best solution. We're already thinking about other spots in the house that could use another shelf!