After the opening scene (between the opening long take on the Day of the Dead celebration and barrel rolling a helicopter, straight flames) it goes downhill quick and stays there.

My biggest gripe was trying to tie Skyfall in the arc. That one felt like its own stand alone movie and character motivations. Casino and Quantum were part 1 and part 2, and you get the idea of Spectre from the opera scene. But there really wasn't anything in Skyfall that tied to the other movies, so when Bloefeld shows up like he was always pulling the strings it didn't work. It's a shame as I do like Waltz in the role, but the movie was just a mess.