This was a surprisingly good show. I didn't pick it up when it aired and I heard mixed opinions about it afterwards but I'm glad I didn't dismiss it entirely.
Nanako was really cute and her seiyuu has a lot to do this. Letting a newbie seiyuu handle a fletchling (loco) idol created an interesting effect. It felt very fitting and natural. Nanako is what made the show for me.
I actually felt like the progress was fine and that they're making a small step forward with each week.
Unfortunately the last two eps were the most disappointing part of the anime. 12 was rushed because they tried to fit in too many things into a single ep. I think making them win the Festival right off the bat would be an asspull but at the same time barely 4th place is disappointing considering they didn't make any mistakes. Should've been 2nd/3rd.
13 was a missed opportunity altogether and it's that ep when I did feel 'well, we're back to square one'. Some locals started to recognize them but they were still doing oddjobs. Ai-katsu, ai-katsu.
Check your gaydar, it's broken. Most of Yukari's remarks went far beyond the level of subtext. Then again Nanako is donkan and she legitimately didn't show much of an interest in Yukari. But it's one sided at very least.