I want to buy a Sex Doll

I have a crush on women with big butts, but since I've always been single and have no relationship or sex experience, I wanted to buy a big booty sex dolls and found this site. There are many sex doll for sale
https://www.sellsexdolls.com/big-booty-sex-doll-category-1_4.html
Has anyone bought a sex doll? How does it feel?