Picked this up browsing the audiobook shelf at the library one day. I'd heard of these books before (who hasn't?) and figured, "why not?" I was tired of my current series. Plus the fact that these started out in my birth year were pretty neat (and really strange to realize I had to convert prices for inflation in my head!)
I'd say I figured out "whodunit" pretty early on in the book, but then again, I was suspecting several people. But my prime candidate did turn out to be the bad guy. Well, mostly.