Fun game! Soundtrack made me feel like a classy kind of thief!
I did get stuck on the first puzzle, but it was only because I couldn't work out which clue was the right one for that puzzle. I think the puzzle difficulty could be finessed, but it's more about adding multiple steps to some of the solutions. If I had to find multiple pieces of information from different sources and combine them together to solve a puzzle, that would make me feel more like a proper sleuth!