So, it seems that in The Baroque Cycle Stephenson has finally managed to write a good ending.
Of course, in order to do it he had to write a book that, in aggregate, is about 3000 pages long, and has such an incredible density that it took me multiple years after the last third of it was published to actually get around to finishing it.
All that considered though, I did enjoy the endiing very much, and I would highly recommend that anyone who gave up after the first volume should fight their way through, as the second really does pick up the pace quite a bit, and the third does manage to tie the whole thing together quite well.