I agree with most of what you said. Keller was better at the end, but for some reason she still annoys me. I like the episode, but found it dragging and the ending predictable - the building falling just as Rodney swings to solid ground. That said, I did like the character driven aspect to the episode, the three working together and Rodney McGuyvering the tube.

"Martin's Rodney is the most fleshed out." Martin Gero writes great Rodney - it is his alter-ego I think. As you said, it would be great to flesh out the psyche and background of the rest of the team for next year. More of this kind of tightly written, character driven episodes would be welcome too.