A bit of a sum up here:
A cute and sweet show with a slow pace.
If you are after a serious story with a strong plot... Run away ! (Even tho considering the anime's poster it would be quite the surprise)
But, if you're after an anime with a "moe" esthetic, an overpowered main character in an "isekai" like world this is maybe a good show to fill in your lost hours. Kuma Kuma Kuma Bear holds to its premises, no more no less, which sometimes could be quite rare. No ecchi, no harem, just a cute slice of life to take a peaceful breath, quite refreshing isn't it ?
The animation is clean and sometimes "really good", the music does the job, the sounds effect too... And the characters, damn, they are so endearing, and even though the relationship between each other remains quite simple (following the premises of the show), damn it is sweet !
To conclude this little explanation, this anime isn't the main dish more of a side one.

If "Didn't I Say to Make My Abilities Average in the Next Life?!" was appealing to you, this anime is a good follow-up and another take. Cute girls, check, slice of life, check, overpowered mc, check !!

Concerning the different episodes:
Well, so far I enjoyed every bit of the show, from my own point of view (maybe because of my past experiences) I didn't find the time to get bored all along the way, and what a path! All along the show, we follow Yuna, Miss Bear, a 15 years-old teenage building relationship all over the place with different kinds of girls, all uniques with their different personalities and their common love for bears.
The culminating point of this precise topic in my opinion, is episode 12 where we can really see the evolution of all the cast.
Yuna being pretty much detached from everything at the beginning of the anime, growing around all her new encounters in the heartwarming world depictured by the studio. Yeah, the strong point of the whole anime is mainly and maybe even solely the colorful characters.

The characters:

How not to mention the characters in this heartwarming experience ? From the daughter of a Duke to an honest baker, this show is filled with pleasing encounters, each one sweeter than the previous one. In order not tp spoil anything, I'll leave it at that.

Overhall:
Do not expect too much of this anime... However, if what you want is a calm experience with a rather strong moe esthetic and an unpretentious scenario. Give it a try past the first episode. It gets only better.