How do I feel about The Lego Batman Movie? Pissed off. That's how I feel. Pissed off that to get another great Batman movie, we had to wait 5 years and for bloody LEGO of all properties to get their hands on the damn thing.
Seriously though Lego Batman is pretty gold. Most of all I would recommend it to Batman fans, because there's a couple of tiny little off-the-cuff references you'll get an extra kick out of, but it'll also work for fans of the original Lego Movie, and for kids too.
Final rating:★★★½ - I strongly recommend you make the time.