At first I didn't like his character much. But after reading some of the chapters he was in and seeing him in the anime I really liked him. I thought his child hood was very well done and unlike most characters in Naruto I actually felt bad for him. I mean making puppets of his parents after they died for love and attention. That probably sounds sappy but I just thought it was done well.
He’s my 2nd favorite akatsuki behind Tobi(who I liked before I knew who he was).