It's the Justice League + an open-world Gotham full of shenanigans + writing that's going to mock its source material at any chance it can get + one of the strongest Lego games I can think of. If your friends will visit your place, it has 2P local co-op too. When the worst thing I can level against a game is "it's a bit similar to the last one, but not in a bland way", I would say that gets my seal of approval, yeah. Huge tip: rush through the story mode ASAP before you go back for collectables/unlocks, the simple ability to swap characters/turn on some of the cheats really makes that more pleasant.
My only complaint: game does not feature Green Arrow, but Black Canary got in somehow. Ah well, that'll probably come up in the sequel it teases at the end. (Spoilers: it teases a sequel at the end which will probably be crazier than this.)