[1.0]: As you can tell from promo images, IA is all about lolis, shota, big boobs and incest. If you're into that you'll probably enjoy it. There isn't really an over-arching story or much weight to the plot, so if you're not really here for the porn I don't think there'll be much to hold your attention. Since development is done this is a nice little game to play for 4-5 hours.
Visuals/Lewds/Gallery: The visuals might take a little getting used to, but they really grew on me. I like how the protagonist doesn't have a monster dong (though it's my understanding that many 3D games have monster dong because those are easier to effectively animate). The art can shift a bit between the sprites and scenes, with characters becoming more/less busty or more/less plump, but I didn't find it particularly jarring. What _was_ jarring though is the way two scenes (hot tub and stealth blowjob) were in markedly different styles. Dunno what was going on with that. Anyway, scenes are static images with text and a very occasional animated scene. CGs can be viewed in a gallery, "dreaming" at night can replay scenes, and you can also visit each girl to replay her scenes with small alterations the second time around. Nice and clean. Each girl has blowjob, vaginal, and anal scenes, with other focuses or fetishes thrown in here-and-there. One does a footjob, one is gloryhole, another has breast sucking, you get the idea.
Story: The game doesn't really have a story; it's more of a setting. Your family moves to a new city which happens to also be the one your aunt and grandma live in. Enjoy summer vacation. There aren't really any scenes triggered by it being day 15 (I think some don't kick in until day 4, but I figure that's mostly so you have time to get your feet wet), nor is summer limited to 90 days or anything. Each girl does have her distinct path, though getting two to max will sometimes unlock a threesome with them. The dev clearly expected you to do the mom and big sister routes first, so it can be a bit odd how Nate's like "What is that white stuff" in the mom route despite having already learned this on small sister's route and also banged 4 women. Eh. Oh, a nice touch is that previous sexual experiences can change some of the dialogue, though it cuts both ways since often a sexual experience doesn't change the dialogue. "Sam might not know what this rhythmic banging represents" Julia, we just had a threesome with her yesterday.
Grinding: Each woman has one or two minigames you can play to earn money and relationship points. The games vary in the time they take and difficulty they represent. I find sliding-block puzzles impossible but the math game was easy; others may enjoy Pong but the typing game is a no-go since they play on mobile. The 7 games are varied enough that everyone should be able to find at least one that's not bad. But what about the games that are bad? Are you just locked out of the mom's path? Nah, since you can spend the money you get on relationship points. None of the paths need money to advance them, so the money is mainly for relationship points. There are also two outfits (which trigger a few side scenes) and some items which make the minigames easier. Everything is quite affordable so you won't need to grind for money for items.
Finished?: To me, the game really feels like it's missing a second act. The characters often mention school, there's some mandatory (and optional) impregnation, and there are many threesome opportunities once everything is out in the open. The epilogue and epilogue's epilogue mention some of this (Kacey being a substitute teacher, assorted threesomes, one pregnancy scene) and posts on the dev's blog mention the artist going off and doing their own thing, so I sorta get the feeling this project was cut short. It's still perfectly playable in its own right, but I feel it's didn't take hold of it's full potential.