Kyoryuger was very energetic, had a lot of fun characters (even outside of the main cast) and the same kind of continuation/coherent story we're seeing here with ToQGer. Even the "filler" eisodes in Kyoryuger had some kind of plot development. It was a huge departure from the dull and lackluster Gobusters and in my opinion, the most consistent Sentai season, if not one of the overall best. But hey, there's a whole topic if you want to discuss why you love or didn't love those show.
This episode was pretty good. I really like the train elements, but yellow and pink were relegated to literally standing on the sidelines for the whole episode, which was pretty disappointing, especially when the idea of who should be the leader was brought up. I get that none of them really cared about it, but Mio has constantly been portrayed as the mother hen type, being level headed and looking after anyone else. It's not even suggested that she could be a leader, except as part of a snide joke.