The Amsterdam Arena is good for a lot of things: sporting events (although I've never attended) and expos (ditto) are probably two of them. One thing it is not good for is attending a concert, especially one where you're interested in a decent level of acoustics.

The only time I've been to the Arena was to see a U2 concert. I waited in line for hours for the tickets, and excitedly planned for months in order to hear them live. What I didn't know was that our seats would be so high up that we felt we were in danger of plunging to our deaths.

I also didn't know that the sound would be so bad that some of the songs (and all of Bono's political talk) would be incomprehensible. It was so disappointing, especially after all the anticipation!

My advice? Stick to the Heineken Music Hall. It's smaller and the sound is amazing, so you can simultaneously enjoy your beer, your companion(s) and your music.