If you enjoy Lovejoy this is a quick, compelling easy read. The setting is interesting, unusual and well described. If you have never read any of the series before, I don't think this is a good starter as you have to be in sync with Lovejoy's amoral attitudes before you will begin to enjoy reading. I have tried to read them in order and suggest this is the best way to enjoy the books.
The book is a treasure trove of English humor and sayings, The author is no doubt a Brit and writes his main character as a Brit as well. Lovejoy is the main character's name and antiques are his game. He is a "divvie" being able to ferret out "real" antiques when he comes across them no matter the type of the part of the world the antique may be from. He is put in the position of trying to "rip" or steal an antique from the Vatican. His plan, his activities before engaging in the plan are the fun stuff of the book. The real meat of the book is in its last ten pages when he is trying to extract himself from the problem of having successfully done his rip. To say more is to say too much.