I saw it in 3D. I think I would have hated it in 2D as well. To me the thing about Herge is that his drawings are very beautiful, the characters are great and the backgrounds are great, it's good art.
The thing I hated most about the film was not the fact that hardly any of the voices seemed to fit the characters, Toby Jones was good but underused and Jamie Bell was fine, it wasn't that the whole thing looked like it had been animated around the idea that there would be a theme park ride based on it within the year, no, the thing I hated was how beautiful drawings had been transofrmed into utterly grotesque characters.
I could not get around how vile Captain Haddock was to look at, all the character designs, even Snowy, made me uneasy. Fleshy and horrible with tiny eyes, ugh. I hated it.