I do not like the CMC beyond what they were in the episode they were introduced. I mean, a side glance at what they are doing might be cute, but two full episodes is really dragging it out. Fluttershy barely saved episode 17.
Watching right now, and I'm not happy with the near constant under-aged butt shots.
Edit: Yeah, there's really no reason to watch the episode other than to find out what the CMC's true talents are. They don't even figure it out by the end of the episode, so you don't really miss anything.