Depends on how well-written the mystery is. A lot of them are bad red herrings and gotcha moments that don't make much sense. I can't predict those when they make a switcheroo at the last second that didn't have any build up to it. I guess I like it when they get a good atmosphere for the stories though, and I do like a mystery where there's justice in the end. I can put up with a lack of some logic for a good tale in other respects.