This book succeeds on every level. The characters are fully fleshed and multidimensional. The business plot is fascinating and although I don't know much about the industries involved, I believed every word.  The problem that keeps the lovers apart never feels contrived, but a natural outgrowth of the situations in which they find themselves.  I highly recommend Windfall.  I see that Mr. Martin has an extensive catalog of books. I look forward to working my way through all of them.