It's pretty much what it looks like it is.
The designs and some of the art are cute, as are some of the jokes with the things on the maps you can interact with, but unfortunately the writing is all very questionably translated, and the ero scenes are kind of laughable. Also the whole thing is only about a half hour or so long.

Not recommended on account of "yeah there's really just nothing here." It is cute though.

Isekai Rondo is yet another Asdivine-like game from Exe Create and KEMCO, which basically tells you most of what you need to know about it right there. Basically: expect unique mechanics for all of your characters, extremely high mechanical power levels, and a lot of options which feel like they're verging on cheat powers. Given the theme of this game - isekai fiction, where the protagonist usually has cheat powers - it was quite fitting.

So yeah, story-wise it was okay, nothing earth-shattering but fairly fun all around. Mechanically it was enjoyable but a bit too easy, as I was able to pretty quickly get and stay above the curve and never had to turn the difficulty down from Very Hard. It wasn't quite as much of a no-brainer as some of the Kemco games with more broken systems, but instead it was just one where I was permanently above the leveling curve.

If you're in the mood for a decent-quality JRPG, about 15-20 hours for the main game and 22-27 hours for a 100% clear, Isekai Rondo isn't a bad choice.