I really liked “Conventions of Space and Time”. While it wasn’t one of the show’s funniest episodes, it was certainly one of the sweetest and most sincere. I even enjoyed Annie’s plot line, it was like an extreme version of when she pretended to be from Corpus Christi in season 2.
This is a good sign for the rest of the season I think. Even if this is the final season, it will have ended on a solid note.