Played both so I'll give my two cents on them.
The first game is pretty much exactly as you described. I didn't really enjoy its as much as you though because of the silent MC. I usually don't mind silent MC's if there's at least a solid relationship between him and the heroine but as you said, there's really nothing there. Even convincing the heroine to take part in the netorase is done moreso through minigames than actual dialogue. The scenes themselves are fine I guess but if you follow the dev then you'll know they're just repurposed CG and scenes from a series he does on ci-en.
The Gyu game on the other hand I have mixed feelings about. I usually start a Gyu game looking forward to the h-scenes then I end up getting interested in the plot instead since his more recent games have a bit more setup. There was still a good pacing when handling story and h-scenes though. In the new release the pacing isn't that great. The story starts off pretty interesting and its really frontloaded. Its good and all but the h-scenes take quite a while before they even start. When they finally do start its all just shoved in your face. The moment you get access to the brothel and prostitution its just gives you nearly all the scenes at once and the scenes themselves have the chance of being out of order along with the heroines falling really damn fast. The main heroine is a jackass when it comes to sex which made for some interesting moments but she goes from hating sex to liking it in the span of one sex scene that happens so suddenly. The out of order problem is also a pain because I did one scene where the heroine finally got discovered cheating by her boyfriend and then a next scene with them talking about it and accepting what just happened and the heroine swearing to tell him when she fucks others and allow him to also decide who she fucks, only to then find another scene which acts as if she still hates sex and acts as if the boyfriend has yet to find out about the cheating. Since the game shoves most of the scenes at once in one section of the game it somewhat guarantees that you'll likely fuck up the order of events. Of course this problem isn't limited to this game but its really noticeable here. The other heroine (brown hair heroine) also has very little presence in the plot despite her seeming to be the second main heroine. At first I thought she was related to the other heroine from Knights of Messiah because of the similar design but apparently not. I do also like that the game adds to the Knights of Messiah world and has a bunch of returning characters along with setting up the next game. That's all from me.
