I picked this up during a deployment with the US Army a few weeks ago, and already the book has gone through a lot. It's a great page-turning read that combines a lot of 1960s private detective story trope with science fiction elements and a dash of humor (inlcuding plenty of pop culture references - one example, heavily edited so as to not give away the story, is when one character tells another "You're mistaken. I am your father," to which the other character simply, and inevitably, replies, "That's not true. That's impossible!" and does it so smoothly it took me a second to recognize it). My only (minor!) nitpick is that I was able to figure out both of the mysteries about the same time as Our Intrepid Hero, (one Zachary Nixon Johnson, the "last private detective on Earth"), but to my mind that's not that much of a bad thing - it allows the reader to let out their own inner mid-21st century private detective.
Even just from a value standpoint, "Dangerous Dames" is also a great pick. It combines two stories seperately available, The Doomsday Brunette and The Plutonium Blonde, into one book that weighs in about as much as a Tom Clancy novel. (For the record, it does indeed fit in an Army Combat Uniform pants cargo pocket.) And at $8.99 USD, it's a great bargain. If you're a fan of sci-fi or pulp fiction, I'd highly recommend picking this one up. If you're looking for a good read that doesn't take itself too seriously, I'd highly recommend picking this up.