This is worth your time. Arnesen writes well and does a good job exploring what it would mean to live as a disembodied "upload." There are a lot of expositions and monologues in this, but it's okay: they're interesting in themselves. The plot is interesting, the characters are pretty good, and the points he raises are worth thinking about. I enjoyed it.
This one's a page turner. It begins with the discovery of an impossible alien artifact, and the mystery gets stranger, and more deadly, steadily after that. It leads at the end to a satisfying, big-screen science-fictional ending. Well worth your time!
You'll like this book better if you ignore the references to Jack Vance and The Dying Earth -- these stories don't have any important connection to that book and the style is only slightly reminiscent of Vance. But on their own, these are cheerful fantasy stories, very lightweight but fun if you're in the mood for that. Heghis Hapthorn is a far-future private eye, solving unusual crimes in an age that is sliding from rationality into magic. The problem with this set-up, of course, is that you can't outguess the detective because the solutions to these mysteries involve more fantasy elements which the author must introduce. (I also have to mention that the answer to the first mystery is memorably icky.) Overall, this book is good light reading for fantasy fans.