Yes agreed, I never have been able to finish TSVM, they just got soooooo bad, and I had really loved them!!A similar thing happened to me with the Southern Vampire Mysteries (the Sookie Stackhouse books). After True Blood started, the books went waaay downhill. The first five or so are very entertaining. I think Ms. Harris intended to finish the series much sooner and was convinced to keep on writing because of the show. Ugh. Bad idea. What she did was nothing short of character assassination. I felt like I lost some of my best friends.
I read somewhere that Bill was supposed to be killed off, but she was convinced to not do it because of the direction the TV show was taking. Ugh, again. I read the last few books of the series and ended up angry and very sad after each one. The strange thing is after the first season, TB goes completely in it's own direction, so her butchering of her own series occurred for no reason.
I just finished rereading Harry Potter and The Deathly Hallows
Hoping to start the Divergent Trilogy when I get time.