Good god, Tonari's ending was boring and anticlimactic. It would have worked a lot better if they just cut it off at episode 12. Natsume was the best character, and her confession on the roof in episode 12 was the best part of the show. Shizuku, Haru, and Yamaken got way too dull.
Out of the three Shoujo's this season, Tonari and Sukitte really went downhill. They started out fine but after around 4-6 they became boring/annoying. Haven't watched the last two episodes yet, but Kamisama has been nice and heartwarming the whole way through.