Average. Lots of boring series.
The subject of romance is underreached.
Characters who seem to have mastered morality, in subsequent episodes completely forget about it and behave as before. And they are all terribly cliched and only with one or two character traits, but this is the problem of almost all children's shows.
Also, I will not criticize the animated series for excessive consumerism, because most of the children's shows are created just for the purpose of earning money, in return, giving nothing to the viewer, and this one gives at least something that can then be recalled with warmth.
Of the pluses, I would note good songs and cute character designs. And despite a ton of boring and stupid episodes, there are still those that are worthy of attention.
When it comes to season 4, my feelings are mixed. On the one hand, it is a pity, but on the other... I would go crazy watching 8 seasons of 26 episodes each of these Amogus.