I loved my experience there this year.
However I do have some critisisms, which I will list from greatest to least.
1. Get some more fucking tents so we can get under some goddamn shelter when it pours without being crushed.
2. Have running water in your sinks so we can wash our hands.
3. Isotonic drinks. I know most raves don't have these, but they really should be standard. Many emergencies can be avoided by adding this to the drink selection.
Overall I though the sets were decent. Roger Sanchez kind of threw me off guard, but he had a really good set. I loved the Teebee set. I really wanted to see Grooverider, but the group I was with didn't want to get soaked and I didn't wan't to be all alone tripping out trying to find them again when it was all over, so I watched badboy bill from under the redbull tent by the house stage (he was ok).
Rabbit In the Moon was probably the highlight of the event, I took some MDMA right before, and man did they put on a show. I hear they do the same exact thing every year, so I will probably pass next year, but I enjoyed seeing them live for the first time.
I watched Benny Benassi for a little bit, but we all decided that he was kind of wack, and some of the people I was with really wanted to see PVD, so I went there. I don't like his music too much (understatent [anthem trance

]), and this didn't change after I saw him.
Overall I had a pretty good time before and after the rain, and I enjoyed this year's Ultra more than last year's, but this could have only been because I didn't have any medical emergencies this year.