I loved the quirky sense of humor of both MCF: Huntsville and Prime Suspects, Ravenhearst is missing that sense of humor. Instead of finding individual suspects you are finding passages to a diary to uncover the secrets of Ravenhearst Manor. The diary passages, although entertaining, aren't nearly as fun to read as the profiles of the suspects.
I didn't find this game as challenging as the others, because I felt that I was given too many hints and too much time (but this could be that I have just become more aware of how they hide things). On average you have to find around 45 objects and have 30 mins to do so. You also get five clues.
What I did really like about this game that the other two didn't have, although we saw a brief glimpse of it in Prime Suspects, is that each level has a puzzle that is kind of like a Rube Goldberg device and you have to figure out how it works. If you can't figure it out then you can opt out and five minutes is deducted from your time limit. This is usually where I use most of my hints, because the puzzles can be very difficult to figure out. For example one of the elements might be that you have figure out the order of a combination of 3 numbers, each with a range of 0-9, so the combo could be 123 or 234, etc.
Once you have found all the clues you have to put together a jigsaw puzzle to get the diary entry. If you are into jigsaw puzzles then great. If you aren't it isn't that difficult and doesn't take too long, so it isn't completely boring.
The graphics are just as amazing as in Huntsville and Prime Suspects, and the soundtrack is pretty much the same.
I do enjoy this game, but I hope they bring back that sense of humor for the next one.