It goes straight to the point which I am certain will make any breast expansion fan rejoice! Lovely art with full animations, the picture where a single nipple is poking out of her shirt is really sexy! The detailed background gives the room a really nice vibe.
The narrative is short, but it's fun how there are a bunch of variations based on where you end the transformation. I Like the pink heart text window with the large font, it matches the brief nature of the dialogue perfectly.
Sound design is excellent with appropriately timed moans, gulps and gasps. The music matches the environment. Everything is set up just right for the type and scope of the game, it's a very nicely executed concept!