I've played through Karakara 1 & 2 and the best way I could describe the experience is "NEKOPARA, but without sex slavery". The first episode is beautiful visually, greatly voice-acted and just wholesome slice-of-life fun spiced up by the interesting post-apocalyptic setting (definitely the most lighthearted post-apocalypse I've seen). The scripting is great, making the dialogue very lively despite the lack of Live 2D or similar techniques used.
Even the way heroines are treated feels extremely NEKOPARA, with two added to the harem every episode. I have to say though, I liked the second one, which Fred the Barber trolled everyone with by giving it a 5/5, a bit less than the first. The gimmicks of the new heroines are pretty poorly done, the story introduces many new elements that feel more like retcons than expanding the game's world and the mystery subplot is a jumbled mess. I'd rather get more slice-of-life stuff and well thought out stories about the setting than these half-assed attempts at being dramatic with a massive cliffhanger at the end. I felt antithetical to what was actually enjoyable about these games. I give 3,5/5 to Karakara and 3/5 to Karakara 2. Nice, short distraction, but hardly anything beyond that.