Dark Knight the IMAX Experience

On Sunday I am going to see the Dark Knight in IMAX. I have already seen it twice in normal theaters and it will be neat to see the difference that the special IMAX cameras make. I haven't been to an IMAX theater for a Hollywood movie in my life. So I don't really know what to expect in terms of visual quality or sound. But all I know is that for $14 it better be good!