Enjoyed it, but not as much as Re:Lucks from the original game. Here are some of the reasons:
Story: enjoyed the interactions with Nao-chan and the main character, but the stakes were a little too high. If they mess up, Nao-chan will be stuck in an alternate world? Hard to enjoy that in a lighthearted manner.
H scenes: threesomes (3P) were excellent, but I was hoping for a few more and with different pairings. I also couldn't get one of the pairings for some odd reason, despite following a guide.
Nao-chan's H scene: the first Re:Lucks let you choose Jun's body for the H scenes, but for some odd reason, they didn't include that option in this game. Even if Nao-chan is possibly the most feminine character in the game, I don't really want to fap to two male bodies engaged with each other. Skipped the H scene and ended up enjoying Nao-chan's portion of the story as an all-ages dating sim.
All those things said, I still enjoyed both the story, the characters, and the H scenes overall. If you liked the first game, you'll probably like this one. I'm sure the individual after stories are also good, but they weren't what I was getting the game for.