Have not played this in awhile but the biggest complaint I had with the last version I did play was that the navigation was pretty unintuitive. I think the UI could use some streamlining/simplification to make it easier to navigate. Also from what I noticed about the original Simbro, the main draw of the game was the sexual tension between MC and Alice. Hopefully that's planned but the last version of this I played I wasn't feeling that at all. I do like the art style for this version despite the differences to the original.
IMO, there should be various upgrades or advancement options that let progress a bit farther with Alice as time goes on.. She should definitely be a voyeur and get turned on watching MC fucking all the other girls. There are obvious options for MC to catch her in the shower and have some fun with her, go on dates with her, have her peeking while MC fucks other girls, etc. Some of the other unique girls from the original also had some pretty hot scenes that included Alice.
My favorite if I remember right required playing as a female main character. FC caught Alice showering and started having a little girl on girl groping session when a male hireling wandered by. FC invited him to join them. Male guard fucks FC right in front of Alice while she watches and masturbates. At the end Alice sinks to the ground and male guard pulls out of FC and cums all over Alice. That definitely should have been tweaked to be an option where a male MC subbed for the guard and FC was subbed by her unique friend (Julia I think?). Anyway just reminiscing a bit about the original which I haven't played in forever.