In Part 1 (completed) the MC and a love interest (you can set the relationship) are stranded on a tropical island. With the aid of a big-pharma aphrodisiac, things become very steamy. In Part 2 (ongoing) the two are trapped on board a yacht with an ersatz James Bond villain, and the mystery unravels.
So does the story. Part 1 is quite good, easily worth 4 stars imho (but use a walkthru - there's a non-intuitive game-ending choice). Part 2 is a a train wreck. Maybe there'll be a last-minute rescue, but I can't see it happening.
First of all, what's good? Okay, the renders are verywell-composed, with nice variation of camera angle, wide-shot and close-up, so the story (Pt 1) moves at a really nice pace. The love interest is beautiful. If you take the daddy-daughter route, the dialogue accommodates it well, making things nice and piquant. There's skill in building the sexual tension, better than most games on this site, and when things happen they happen with vigour. Narration is always bad, but in this case it's minimal so I'll allow it. Dialogue is good, spare and naturalistic. If I were to teach a course on how to structure and pace an erotic VN, I'd use Pt1 as an exemplar.
Now let's talk about the trainwreck. Hindsight's 20/20, but you can see the seeds of disaster in Part 1.
First, the MC becomes steadily hornier and less competent as the story progresses. The LI becomes more independent. This is all kinds of weird, because it means that the drug-indced sex becomes increasingly ickier. The MC's change from adult male using all his ingenuity to keep them alive, to Mr Cringe wondering how a successful career in Big Pharma led to this, is a real turn-off. The Dev makes you identify with the MC, so as the game progresses, you end up disliking yourself more and more.
In Pt1, there's a kind of dream/memory thing going on that implies a mystery. It kicks into high gear in Pt2, but it feels very forced. There's an expression, Chekhov's Gun - if you show a gun in Act 1, you'd better fire it in Act 3. This actually happens here, but not only that, every character who pops up in the Pt1 dreams turns out to be important in Pt2. Everything is significant and every possible loose end must be tied. This just makes the world very, very small. It's paradoxical: the MC and LI alone on the island possess all sorts of possibilities, but adding the villain and his babes on the yacht induces claustrophobia.
The mcguffin is the aphrodisiac, and there's a problem here, too. See, they add the aphrodisiac to alcohol. Think about that. That's like, hey, let's add a stimulant to Redbull. It doesn't really make sense. It should be added to something innocuous and, frankly, more likely to be consumed by castaways on a desert island. Dasani.
Finally, it is my sad duty to say that the narration increases in Pt2. Nobody here watch Cinema Sins?
But Pt1 is nice.