But being relatively unspoiled, my first viewing floored me. The opening half hour was great fun, the space battle was nice. Then the middle 30 minutes slowed down with the setting up of characters, but the final hour floored me.
Order 66, Palpatine's declaration, Vader going around killing people (finally!), the duel, the birth of the twins/vader masked and that last 3 minute silent montage. I had tears in my eyes, basically all these years of Star Wars, its all going back to that tiny farm in Tatooine with a whiny boy called Luke.
My second viewing was less emotional for me so I just sat back and watched it, and yes, I picked out the flaws because of it. Overall, Its tied with ESB right now for my favorite SW film. I can say one thing though, given that Rots worked for me and it seems the majority of the people, many of the scenes in OT, especially in ANH have additional weight and resonance to them.
I was really indifferent to Hayden's inclusion in ROTJ and I'm sure many people here hated it, but after Sith, I went back and watched the DVD again and seeing him in force ghost form evoked all kinds of feelings I had about his character in Rots, and it worked. For all the complaints about his poor acting, I think most people wanted Anakin to not turn to the darkside, and Hayden played that part of his role well enough for people to care about it.