I watched all five seasons and I can tell one thing: at the end I didn't care, I just wanted that it ended, and soon. In the last season I smiled barely twice in ten (ten!) episodes. This was a torture, at the end I couldn't care less about the characters, the deaths and their fate. I barely remembered the plot from the previous seasons. Everything was so devoided of any tension, any build-up. Characters supposed to be in absolute danger just were going around the castle as if there was no menace at all. It was so disappointing, and the music made it even worse. The last season tried to smooth down some of the flaws of the previous seasons, but the damage was already done. What an amount of wasted potential, this is my biggest regret. Repeating the same jokes 100 times doesn't make them funnier, just more and more boring. Where are the brillant writers of the first seasons of Futurama? Or of the Simpsons? This show pales compared to them. And yes, Matt Groening lost his magic touch nearly 20 years ago, it's a fact.