Sometimes it's quite funny, the FL's dual role is sufficiently charming, and the frequent songs don't hurt either.

Acting, production and sound aren't great. There's more than enough plot holes and scenes that serve no purpose.
Unfortunately the whole middle of the show is full of filler scenes (while it's not that bad early on, one episode near the end is almost entirely made of adverts!).
Towards the end the writing goes into some really absurd directions, with obstacles being created and torn down again just because. Many spoiler reviews lash out at a particular arc that really shouldn't have been added.
The final episode only wraps up about two thirds of the characters, with the others disappearing never to be seen again.

As is common in CN dramas, the audio dubbing is very noticeable and sometimes quite bad.


P.S.:
I've seen shows that have cliffhangers meant to make you tune in for some revelation every single episode.
I've seen shows that just stop between scenes and don't try to fake excitement.
But I've never seen a show where plenty of episodes just stop like it's in the middle of somebody's sentence.