First, I want to say that I think the game deserves a 3.5 stars, but since one of the reviews gave a 1 star for crashes that have been corrected, and some of their comments shows that they have only played the first few minutes, at most, I have decided to give it a higher score to counteract that.
Now, about the game:
Cons
-This is MTL. It's not the worst I have seen, but it's also not great.
-2 of the 30-ish panties do crash the game, but the rest are fine.
-Some of the scenes require you to grind a specific events or to lose a lot to become accessible.
-There isn't that many scenes in the game compared to the previous installment.
-Partly because of MTL and partly because there's no quest tab or anything of the sort, it can be hard to find where to go next.
Neutral
-The combat went from turn based in the first one to real time. In the previous game, the combat had a lot of scenes, which this version lacks, but it also made the game much longer and forced you to grind battles to see the scenes, so I'm a bit ambivalent about that choice.
-There are side scenes in a few places and they are quite good, but it's hard to know where they are and when, as some of them are only available at some point of the story, and with the right grind of stats.
Pros
-The game has some good diversity in its scenes.
-The story is interesting, even with the MTL.
-There is some replay-ability in the form of a no/low loss count and a high loss count. Once you lose enough, some characters will start to talk to you differently. You will also gain access to more H-scenes and more money which can be used to make your character better. On the other hand, low losses means that the game's difficulty goes up. For those that want to challenge themselves, this is the mode.
-The bad ends are varied and quite interesting.
Overall, this is a good game with solid scenes and story. It does feel more empty than other games by this author, but I believe that this is due to the lack of in-battle scenes that they usually have. I did have a good time playing and once I passed the few crashes with panties, at the start, I really enjoyed it. That being said, I never made it to the last boss. As I could not find how to enter the city in the last mission, I got frustrated and dropped it, but my time before that was quite entertaining. I even went back a tried to get as many of the scenes as I could, which was worth it. In general, I would recommend this game even with all the issues I mentioned, but I think that you are better off playing his other games, if you haven't yet and this one looks interesting to you(See the names in DLsite if you want more than just the prequel).