Not great. 2.5 hours worth of a 10 minute SNL sketch. The message was loud and clear but it wasn't entertaining enough. Either needed to be funnier and be enjoyable or less funny and be serious. When I saw it was McKay and the cast that were involved I was hoping for something great but it was a bit underwhelming.
As is often the case with satire it won't win anyone over. The people that are the butt of the jokes will dismiss it, the people that think they are clever because they "got it" will love it. If it's not going to have a purpose then it just needs to be able to stand alone as a great film but in my opinion it was only good. Doubt I'll ever watch it again where I'm usually a repeat viewer of McKay's stuff.