Floatpoint is an excellently written scifi story played to a point where an important decision must be made; then you make it. More specifically, you play an ambassador from Earth sent to an imperiled planet of genetically divergent humans. Your job is to learn enough about the people here and at home to set the terms of a possible relocation of these now-aliens to Earth.
The game text is well written indeed. This is classic science fiction filled with clever little elements I really appreciated--such as a borrowing of or convergence on Jack Vance's "comporture." Exposition at length is mercifully avoided in favor of brief, imagination triggering descriptions. The issue the game presents you is almost certainly connected to any of a dozen cultural battles you are already familiar with, so it should have something to offer everyone. If, however, you don't appreciate the tale she's spinning (or you find it too contrived), then you won't find much else to keep your interest. In other words, this game is absolutely not about puzzles (there are none).
There is some clever coding here too: a PDA-like interface to the game that obviates the need for player generated notes, and in game email. But there is also a glaring bug that interferes with an important thread of the game. [N.B.: get off you hover unit and the bug goes away (I think).]
In the end, however, I found that the length and fullness of the story came up short (so to speak) so that the whole thing felt a bit like an examination question or simple thought exercise. A bit more development of the characters, a few more juicy details, and this might have been avoided. The game is still very worthwhile for the excellent writing alone.