I use (and pay) for QB Online.  Even more than the offensive intrusive of unwanted ads, it also takes up valuable screen real estate and decreases my productivity!  As the page reloads after reviewing a transaction and the focus is returned to the top of the screen (rather than to where it was when I accessed the record), the stupid ad reappears and I must scroll again!

Scroll, open  and review record, back to the top, dismiss add, scroll and repeat.  It's an obnoxious workflow that only serves to remind and constantly irritate me that the add comes back so frequently!!!!