I have two- they are 8 months. Always had dogs so they are less work obviously but much more 'high maintenance' than my friends cats. It's what I wanted and I love it but my goodness. My lap is never empty, they talk at me all day, are incredibly athletic and mad half hours are something to behold. They've destroyed every toy I've bought them. Just had a new delivery of Da Bird as the last batch and rods are knackered. Am wondering how people successfully keep them indoors all their lives, I just can't imagine containing them.