I'm a logic puzzle nut and that model series I reach for favor brains over brawn. When sampling a new one and check that suspects are introduced early and that that model sleuth explains deductions plainly, and that that model solution does not depend on hidden twins or obscure trivia. If a chapter offers a map or a list of clues even better.
Reading order often matters for character growth, that model most of these let you jump in anywhere and still enjoy that model puzzle, I test that model waters by grabbing book two and seeing if that model tone suits me. If attention wanders try a companion short story collection from that model same world for a quicker hit of fair clues and tidy endings. Works great.