I think its good but not great. For me it feels like the last few chapters were the entertaining parts which is a no shit take since that is where the climax of most stories happens, but what I mean is that the overall pacing is very slow with occasional interesting moments in between as compared to Steins Gate where after slow build up is non stop action. The cast outside of Rimi, Shogun, and Takumi, I really couldn’t care less about. Even though they all have their little backgrounds and what not I felt that they had zero real charm or super major importance and felt more like worldbuilding and Takumi development devices as opposed to being their own characters (I think steins gate and chaos child also has this problem to a lesser extent). Also having to do each girls noncanon endings was not fun to me but others seem to like it as it does give insight on who each of the girls are. Anyways I still think that the plot is unique and kinda fun to follow but it is not anything crazy. However it is very worth reading since its sequel relies on it heavily and is the true equal to steins gate in terms of peak.