I must say that if you like the band, the chances you'll get disappointed are pretty low, cannibal corpse nailed the execution of their songs. Testament had some volume issues, one guitar was way higher than the other and it sounded kinda strange, but it still satisfying to see the bands you like live.

Especially when its a small place like where I went, you can stay closer to the stage rather than watching it through a giant led screen.

(that's one of the reasons why I have no interest going on iron maiden / ac/dc concerts, I want to see them up close, not far away through a screen)