Just watched the first half of the season, and man, that's some uneven stuff. I don't think any of these story arcs needed to be as long as they were, and I also kind of wish they happened at more or less the same time, so that each story could've progressed a little in each episode. Four episodes in a row on Mars was rough...by part 3, I wanted to see anywhere else.
And I really can't believe they're gonna let this Beast Boy depression story continue into the second half of the season. I know they want to be respectful of the situation and not give him an overnight breakthrough, but I mean Jesus, the show has no problem time-skipping over much more interesting stuff.