A few people prefer the larger text, the new icons are a good implementation (though now you can't see from the main forum page if sub-forums have new posts). Some old bugs are still there, the new bugs after the change have been dealt with.
Personally, it is weird getting used to the changes however small they may be. To adjust, I
drastically change my personal settings for a day and then put everything back to the defaults. Then, no matter what was changed, it feels normal.