I am glad these games are experiencing some changes. At first we started with the casual but incredibly entertaining Star Wars series wich were kind of a revolution in the gaming world. Sadly, these games started to become worse with each edition until with LEGO Batman DC Superheroes they seemed to find the sucess formula.
In this one said formula has been improved so now we have a solid game (Still quite casual, so everybody will enjoy it) with light humour touches a GREAT voice acting and an awesome sountrack. All that accompanied by the charisma of these lovely LEGO characters.
Gameplay wise this game also included the free roaming feature available in LEGO DC 2 wich was, from my point of view, a great advance.
So my recommendation is that if you are either a fan of the movies, love to play casual games, have a laugh every now and then or have some kids at home, you should get this game.