Personally, I'm not so bothered by the continuous scroll, but two things that have really turned me off in the new app are:
For a leftie like me, Penultimate's original drift function was awesome. Shifting that to a zoom box was a terrible move, no matter how resizeable it is. Please consider reinstating the original drift functionality, or at least give us the option to have the zoom box located at the top of the screen, like Notability did a long time ago. That will be really helpful for us southpaws
Also, like many have pointed out, the ink rendering is really, really, really terribl