Coming back to this after 1.0 released, and my feelings have stayed pretty consistent. Of course, I like TwistedScarlett's art, which means the CGs are already great, and the writing between Tatsumaki and the MC is surprisingly sweet. Most of the H-scenes get some pillow talk afterwards, progressing the relationship, and it's just really cute to see it develop.
As for gameplay: everything is pretty linear for the first in-game week or so. You spend each day patrolling, with each encounter having a few options on what to do, usually based on your current stats. Every other evening, Tatsumaki visits, giving you an H-scene. Eventually, once your relationship's gone to "the next level," you move to the Hero HQ, marking a shift in gameplay. After this point, more locations to patrol will open at a steady pace, combat will be more common, and you get to choose when (and what) you want your next sexual encounter to be.
I think my only real issue is that the end of the game feels a bit abrupt, in my opinion. Maybe it's because I was playing as the updates came out, so it got paced a little strangely for me, but everything comes to a head all at once without quite enough buildup. Still, I'd rather a game be short and sweet than full of monotonous padding, so if TS got out all they wanted to, so be it.
Great art, cute writing, solid gameplay; I'd definitely recommend this if you like TS's art, Tatsumaki, and/or romance with your porn.