One of my biggest problems with Sasuke is that he has the character motivations of a nine year-old looking for a popsicle. One week he wants one thing, then he'll want something completely different. I don't feel any sympathy for him.
This arc has just dragged on for so long. I admit that things are getting better now that Obito has stopped whining about Rin. Maybe it feels even longer becasue I actually review the weekly chapter for manga/anime database and news site. This is the review I made for Chapter 641. I thought the combined attack was a bit corny, but I still really liked the chapter
http://www.animevice.com/news/av-mod...1-review/7055/