I think everyone talks about how underrated it is, so lots of people rate it... so therefore it's NOT underrated! (if that makes sense )
Why is it that the world never remembered the name of Johann Gambolputty de von Ausfern-
kalbsfleisch-mittler-aucher von Hautkopft of Ulm?
I think her serve has been fairly rated. I have never heard ppl badmouth her serve and everybody who talks about her serve only says nice things about it. And her serve is definitely one of the most difficult ones to return as her height helps it with angles and placement.