New layout of Adobe Reader is utterly counterproductive, and makes everyday use of Adobe Reader much slower and confusing.
I, as well as many other users I know, am using Bookmarks and Pages in at least 95% of times when I use Reader. Therefore, they should be placed on the left, where they are expected to be (it is simply a standard for similar "master-detail" situations).
Also, primary tools, like paging, zoom-in and -out, are placed in a bottom-right corner, just like they were hiding?! But these are the basic tools, and they must be placed centrally, either on top or on the bottom of the screen.
On the other hand, toolbar with tools for commenting, highlighting, etc. is placed on the left side, taking unproportionally too much space on the screen, while it should be placed where toolbars usually are. I'm using these tools practically in less than 1% of times, so their current position is just annoying.
There must be corresponding options, allowing users to customize positions of these UI elements, so we can place them to best suit out everyday needs.