Question To The Dutch Cinema Visitors

[Damage Inc.]

So, this is to the Dutch people or people that live in The Netherlands, just in case I'm posting this in English...

I just found that apparently the Pathé-cinema in Rotterdam also has IMAX.
Now... would this be another sort of "fake IMAX" like the Pathé in Amsterdam?
Because I went there to see 'The Dark Knight' in IMAX and I wasn't impressed at all.
The screen wasn't that big, the image wasn't that great and it was also really curved.
Besides that, the audio was ugly, it hurt my ears and I go to Metal-concerts...
Where I saw that film first, in a Belgian Kinepolis-cinema, it kicked the "IMAX"-version's azz 10 times.

So would it be the same for the Rotterdam-cinema or could this really be a legit high-end IMAX-experience?
Because previously there was only the one in Amsterdam and there's also this OMNIMAX-theater in The Hague.
Has anyone been in this one or how can I know without going there having 50% chance of it being real IMAX?
Shouldn't it have some kind of license or actually more of a certification?
Cause a license would of course AT LEAST be handy to promote your cinema with IMAX... XD
But if it's officially certified, I guess that would prove a little more...