I am also annoyed by the new update.
I much preferred the bar with Speed Dial, bookmarks etc on the left and not the bottom.
Default Speed Dial in Opera27 is back to the old style, looks ugly, really slow. If you use flags and set it to experimental it is buggy as hell, there is a little black bar with a text description at the bottom of a few of my speed dials but not on others. No gear to click easily configure speed dial.
The whole thing is horrible.