I'd be willing to give it 5 stars if only it had a few more patches/QoL changes. However, I'd say it's still a good time waster, just spent 2 hours on it.
Gameplay, 4/5: Just Go Around Doing Shit
There's not much to say, other than it's sort of like a plethora of mini-games and references. For example, there's a shittier Ace Attorney mini-game where you gotta clear your friend's name, "wood collecting" where you... beat the shit out of stumps? And a mildly annoying "time your pushes to catch the rabbit" thing, plus a few puzzles here and there and... It's fine.
At only 2 hours long, it does not over stay it's welcome. It's just menial chores and would get really boring if it lasted maybe an hour longer, but with several different mini-games, albeit all kind of slow and easy, it keeps enough variety.
My main issue is that even with "Always run" on, the map is large enough that going back and forth to check on the heroines gets a bit tedious even within the first 30 minutes. Yeah, 10 seconds is not a lot, but multiply that by 10, and you get a minute and 40 seconds. You'll be seeing the same areas a lot, and the menu navigation to save is clunky (as of 1.0.1 w/ the Fixes Patch). Also, some things like random flowers or bushes have collision and it's a bit annoying. If collision for the small debris could be removed, and have a way to speed up everything just a bit more, as well as viewing just the animations for the H-Scenes, I think it'd easily get 5 stars.
Overall, it's short enough that the repeating days don't get too sickening, but it is enough to get sort of tedious by the 1.5 hour mark.
Visuals, 5/5: RPGM Stuff, but Good
The animations are cute, pixelated, and not just "sliding back and forth" or "stretch and return to normal" type "animations" as other games do. The girls are cute, with a decent enough variety, though those who like dark skinned girls are SOL. The environments are nice, and the textures and sprites for the girls are good as well. I believe the girls' sprites are unique as well.
A minor gripe that only cropped out here and there is that some walls, you can get closer to, like with the boulder puzzle where it's not exactly clear where you can step and cannot, but is easy enough to test out and not the end of the world. Still 5 stars because the issue is very minor.
Audio, 5/5: Unique Music (For an H-Game, at Least).
As stated in the header, I believe that there's unique music for the island and stuff. Standard sound effects for menu navigation and some SFX here and there, but they're all fine. No VA's. Music good. SFX OK. Not much else to say.
Story, 5/5: A Generic, Dumb, but Beautiful Story
It starts out pretty generic, and ends on a dumb (funny) way. I'll avoid spoiling anything here, but it's a stupid plot twist that's a bit funny. The characters are pretty generic, like the "violent" childhood friend, the kuudere, the mysterious and bratty one, and big tits weirdo. Then you have your pals who don't NTR you surprise surprise, where there's the monkey-faced pervert, yankee looking/delinquent looking, golden hearted senior, and big muscle bro who's a bit shy.
The intro, generic as is, is that you go for a summer vacation on an island and your shitty boat gets swept away so now you're in a survival situation, can you get the girls to like you?
Overall, while I got tired of all the reading by the end, it gives a decent background story for most of the girls. I may have missed things like, the "brat," I still don't really understand essentially, how she got here, since, she's "not normal" basically. Unless I'm stupid, which I may be.
TL;DR, 4/5: Good Time Waster w/ Minor Gameplay Problems
The game takes about 2 hours to beat. Good time waster for decent animations. You only get 4 per girl, and 4 girls, and there's no customization. However, it's all pretty good. There are better porn games, and better gameplay games, but as a porn with gameplay game, it's pretty good, with the minor problems listed in the "Gameplay" section gone, this game could be 5/5.