The server was down initially until I upgraded my EC2 instance from micro to small. Now it's running, but yeah, I didn't test in Opera so I'm not surprised.
I find that reading news aggregator content like Google Reader or Hacker News is much easier and faster in Opera than in Chrome.
Apart from that, Opera seems to have many bugs where pages that other browsers load just fine, load incorrectly.
But yeah, even now, Opera won't display your site.
About a month ago, I was researching this, and I found then, (but cannot find now), some threads that said this was a long outstanding problem created by some race condition. Another said it was caused by too much priority given to processing the Chrome spinner in each tab.
I don't know what the case really is.
I do know that Opera does a much better job of opening multiple tabs at the same time as Chrome, so I use Opera when working with feed readers and the like.
All else, I default to Chrome.