It was a good series finale--not the best one, but good enough when you realize the limited time they were given. Liked that they brought back H.G. Wells and Leena for the finale, but I felt that they wasted too much time this season with Claudia's sister (and not one mention about her brother) so it all felt rushed towards the end. Still, they went out in the best way possible--business as usual.
I'm gonna miss these guys.