Normally, I am hooked to the Christie book the moment I start it and cannot stop until I find out "whodunnit". But in this book, I found that it dragged on at bits. Many passages, pages, and indeed chapters, were devoted to Miss Marple's thoughts on the matter at hand...which turned out to be VERY long-winded and ultimately boring. And what's more, I could guess quite early on "whodunnit" so there wasn't much excitement as there usually is with Christie book for me.
All in all, you should read it if you are a Christie fan just for the sake of reading all of her books. You'll be able to bear it...just. But if you're not, I advise you not to read it because you'll form a bad opinion of ALL her books from just this one and let me tell you that this is NOT one of her best or even one of her good ones.