I think you're were among the ones expecting to watch Intersteller to become the next 2001: Space Odissey and have the same aesthetics and concepts, hence your constant comparisons to the Kubrick's masterpiece. It wasn't. I really don't get it why this comparison started out, in the first place. Both movies are completely different, both in pacing, concepts, thematics and even philosophy. Forget about it, this isn't 2001: Space Odissey 2/killer, if you fell for this hype, then of course you'll be disappointed. But may I remind you that 2001 got a lot of backslashing in 1968, when it came out. People were "WTF is this shit?" and were clueless about it. The fame it has now was stablished among the years. I'm sure if it was release now, in 2015, it would be trolled badly by many, mostly because of the subjective nature of the movie you're praising so much.
Interstellar brought many scientifc themes with spot on accuracy, one of the most plausive space travel movies ever made.
Kip Thorne, a notorious astrophysicist, was scientific consultant and executive producer of this movie. It's a very immersive experience
Like I said before, like 2001, movies like Scarface, Citizen Kane, Blade Runner, Clockwork Orange got a lot of negative press and criticism in their initial release, some of them were even banned on some countries (Clockwork Orange?). The criticism were many: overambitious, pretentious, cheap, unnecessary violence, confuse plot, etc. And here it is, no one can question their cult classic status now. Despite the hating, which is minority, Interstellar has a huge amount of praise overall. Just because this isn't 2001, which I serious suspect was the reason for why you watch it and was expecting it to be, or even Contact, a wholly different movie as well, doesn't make it a bad film. Your attempt to place it an uncontested bad film sounds silly and pretentious. Your opinion isn't universal.