"it just didn't work out like everyone (in the fictional Star Wars world) thought it would. "
If you are referring to gross miscasting and mis-writing for those miscast to play anakin, then I agree wholeheartedly.
Definitely a botched job. Vader was supposed to be intelligent . . . a master engineer. He designed the TIE fighter. Did you ever get any sense that this was the case? The only inkling you had of it was when he was a little kid on Tatooine. They pretty much abandoned that whole aspect of his persona.
I was hoping to see a character who was truly power mad and truly evil. What I got was a punk who was pissed because he didn't get his way. His whole conversion to the dark side was pathetic and weak.
I was very disappointed.