This is pretty much it. They don't take themselves seriously and have a quirky sense of humor that my ten year old brother loves (Boromir gets shot with a banana instead of an arrow for instance), it's what he wants to play when he comes over. You can "kill" the co-op characters I put it in parenthesis because there is no blood, they respawn almost instantly and you only lose some of the studs you collected, but I find that adds a fun lighthearted competition to it. The puzzles are pretty easy to grasp, but I still find them fun. As a guy in my mid 20's who grew up with Lego and most of the franchises they make these games from there is definitely some nostalgia to it as well.
This game follows the plot of the Trilogy and pulls character voices from the actual movies which is new for the games and kinda neat. It doesn't really add anything else to the Lego game formula but the source material is good enough that they didn't really need to.