I loved the first Transformers movie; it was action-packed, funny and seemed to poke fun at it's own cheesy dialogue. The second movie was terribly disappointed and I vowed not to see a third movie. Somehow I got sucked in and saw it on the world's third largest screen in Melbourne. I found it as bad as the second movie. The characters are annoying, the plot is rubbish and the dialogue is abysmal.
I'd only recommend you see this movie if you're after a long brain-disconnect where you can stare blankly at big VFX robots fighting - and nothing else.