excellent hard-science novel, February 2, 1998
Reviewer: A reader
If you're not excited by feeling your mind being stretched by science that is right at the very edge of theoretical physics, then you may be someone who thinks this book is "boring". If you aren't filled with wonder as an entire utterly alien civilization is presented to you, then you might not like this book.
But if you're enraptured by a plausible alien civilization that uses almost future-magic technology which is nevertheless comprehensible (especially if you're an avid reader of physics journals or popularizations), then this book will be one of your favorites.
Negatives: Bob Forward is at his best when writing about the science; he is weakest when writing dialog. For the alien dialog, this isn't really a problem, but sometimes the way his human characters phrase their sentences will make one wince. I found this fairly easy to overlook, but others may not.