The day we decided we were moving to Austin was the same day we bought our tickets for ACL. By that point there were only tickets available for Sunday, so we bought two tickets and waited in anticipation for the fest. Since we have Elton and we didn't see a reason to get a dog sitter for the day, we only went for a little over 3 hours. It was a really interesting experience. Overall my favorite part was that we were able to easily walk to the fest rather than bum a ride or catch a taxi. I also enjoyed seeing Edward Sharpe and the Magnetic Zeroes live. But the real winner of the day was Band of Horses. It's the band Ryno took me to see when he proposed, and they had the best sound quality of the shows we were able to catch.
Next year I want to bike to the show and maybe grab a three day pass. I think it would be fun to concentrate on seeing more of the earlier shows rather than the headliners. I love finding new music in those types of settings. We'll see how it works out, I do have another year to plan it out.