I love this thing.. My cat does even more so. She is so happy to have a space she is allowed to climb and she loves having  a space to hide in and a nice vantage point. This may sound weird to people who aren’t cat owners but I’m usually pretty wary about buying things like this because cats are picky about smells if they smell like “chemicals”, but this did not have an offensive plastic odor. In fact the smell of it was enticing enough  to my cat that she often interrupted the building process to lay on the flat pieces.