If you own "The Great Ace Attorney Chronicles", you'll get access to special features and extras that you wouldn't normally get, on a normal Ace Attorney game.
In summary, there's videos, escapades, artwork and even a costume change but for "Resolve" only. Also as an exclusive, should you get stuck in the investigation or on trial, "story mode" will automatically help you go in the right direction and from the "Ace Attorney Trilogy HD", once in the investigation you click on the object or person, a tick will appear once you glean on the information that you need to keep on going.
Don't be afraid to have a look once you've been exhausted from this game. You need a break after all and have some fun!