Although Susan enjoyed working on The Brady Bunch, she has said that she didn't like how Cindy was so underdeveloped as the show progressed. Even in the later seasons, she was still wearing pigtails and had the exaggerated lisp, and Susan wishes that the writers would have allowed her character to move past the cute little girl image.
Susan's Brady Bunch co-star Maureen McCormick wrote her own autobiography in 2008. In it, McCormick claimed that the first kids on the set to be linked romantically were young Susan and Mike Lookinland (Bobby Brady) during the filming of the first season! According to McCormick, Susan and Mike--8 and 9 years old at the time, respectively--made out in the doghouse on the set and had a pretend wedding, officiated by McCormick herself.
Susan: (when asked if she ever wished she were Cindy Brady) Nope, never. I've always loved my family and my life far more. That's pretty lucky considering how many kids wished they had grown up in the Brady household. Not me, I liked my household way better. We were weirder. Besides, we had more pets, the Bradys got rid of Tiger without so much as an explanation!
Susan: (when asked if she prefers working on TV or the radio) Radio, I don't have to diet or brush my hair. Actually, radio because I'm not playing a character. I can be myself. After growing up with people assuming I was Cindy I guess this became a big deal to me. There are no scripts so nobody's putting words into my mouth. I can make it up as I go along. I like the freedom and the challenge. I also like eating like a pig and neglecting personal hygiene.