The Android is very funny, kind and does bring a pull to this show that the other characters aren't as good as in my opinion as well. The writers and the actress definitely did great with her character. She's probably my second favorite. :)
She is probably the best actress of the entire cast however, much as I like her my favorites are a toss-up between Six and Two. Never get tired of looking at his sculpted physique...but wish I looked like and could fight like Portia (Two).