isn't quite a standalone, since in some respects it's a sequel to Survivors
by the same author. It brings back guest characters from that book and makes reference to its events. And Survivors
is a pretty strong Data story too (though it's mainly a Tasha Yar novel), allowing for the fact that both novels were written before the show retconned Data as being incapable of emotion, so their portrayal of him may seem odd for readers today. Anyway, I think if you get one, you should get the other too for the full experience.