i went and being from canada, i HATE the heat!!!
i didnt like bonnaroo, for many reasons actually.
1. its hot, very hot. i didnt mind TOO much cause i love festivals and spent 8 years of my life in sweatbox nightclubs. my girl didnt like it and we missed more than a couple bands cause we had to take breaks.
2. it was just me and my girl, and we didnt really seem to enjoy meeting the people we met there, so it was maybe not as fun, looks like most people went in large groups.
3. getting a good spot wasnt too too hard, but it did mean standing still, baking in the sun for at least 45 minutes before the band even came on.
4. i hate camping, i dont like it when i do have personal space and its not 90 degrees by 8am.
- all in all, unless the lineup is undeniably killer for you and you cannot miss those bands, i'd pick Lolla or Chella both are milder in temperature (believe it or not) and have easier hotel options and lets face is , SoCal and Chicago kick way more ass than, tennessee.
thats my review, and i'm sticking to it.
oh, also, fyi, my Bonnaroo review is 4 years old.