All my 4 cats love it, and 3 of them are girls. Of my 3 cats I had previous to this, only the boy liked it. I don't know about any of my other previous cats, because I never bought it for them that I remember (it was my son's idea when I got it a few years ago). My mother bought it once many, many years ago for her two female siamese, one of which ignored it, the other who peed in it! I guess that's why I never bought it before for my cats!