I just read this book over the weekend and I quite enjoyed it - it was a nice change of pace from the earlier Typhon Pact novels (not to say I didn't like them also), and I felt that the story was well suited as a novella. Personally, I'd like to see more novellas like this.
For what it's worth, I purchased the book through the iBooks app on my iPhone and read the whole thing on the iPhone 4 screen. I was a little uncertain about doing it that way but I haven't purchased any kind of e-reader yet so it was either that or my PC screen. On my iPhone screen the book ran 302 pages with about 80 to 90 words per page. Actually, if you disregard the pages at the beginning with the title/publishing info/etc., the actual story ran to more like 285 pages. It ended up being a fairly comfortable read (even with my poor eyesight), but YMMV.
I personally prefer paper books, but I'm open to e-books as well, especially for shorter tales like this one.