I've never reviewed a mod before, but this one stood out so much that I had to say something.
I tried this game in the past without this mod, and I have to ssay, sometimes it was a bit infuriating, especially with how easy it was to accidentally scroll back in time (an issue made worse by the scrolling in-game phone interface), undoing things like comments and chat replies.
With this mod's mini-menu, you can always know when there's something on your phone that you haven't responded to, which is vital in this game. Otherwise you run the risk of missing out on relationship points (though I must admit I was never clear on how important those points were. The stats seemed to matter more most of the time.)
It was also nice being able to tell in advance what a comment/choice would do, because it's not always obvious what will happen from the short description . Granted, even with the information about bonuses and penalties, it wasn't necessarily clear what the MC was going to say or do, but at least you were given an idea of what the end result would be.
I also appreciated the feature that let you go back in time and change one or two choices, though in those instances my choices were sometimes limited by what my stats were anyway, and going back in time wasn't going to change that. (Might be nice to have that option for the research choices, but those are spread so far apart that it'd be hard to just lump them together.)
I look forward to seeing more of this modder's Multi-Mods in other VN's, as they seem to know what they're doing.