I have spoken with Barbara a few times over the years on matters unrelated to my fiction (I don't write children's, MG or YA.) and I just recently found out she represents a friend whose YA novel has done very well.
She is, as my friend described her "a pitbull." In other words, she an awesome agent and anyone would be lucky to have her.
I, personally, adore her.
She's funny, straightforward and honest.
She does not, however, get along well with computers. She only recently started using email. So she's still out there, still repping and still awesome, but still has no website or public email address and probably never will.