As pulp fiction goes, I suppose it's ok, although I wasn't much taken by it. There's little character development and lots of improbable action, action that makes no sense. The main character is a master burgler who also poses as a collector of fine art. His guiding principle is to avoid entanglements with all people, especially women. So, he sees a young woman, dining with some older men, falls instantly in love and reforms, after which, people keep trying to kill him in devious ways. Or something like that.
The whole thing seemed stupid to me. But it has all the elements of exciting adventure, people being shadowed, car chases, bullets flying, bodies with slit throats, beautiful women inexplicably showing up at strange venues in the middle of the night, and even an airplane chase (only a mere 11 years after the Wright Brothers).
Conceivably I'll read another in the series. They are, after all, all out of copyright. But I've read a lot of cheesy fiction that is much better written and more compelling. I think I'll search out more of that when I need a break.