I've used turbotax for many years and the website was very slow. Also they auto imported a bunch of bank statements that I already imported and had to spend a bunch of time deleting
there are so many questions and some seem repetitive. When I want to go in to review my entries, I would like to review my previous answers and not have to answer the questions again. I would suggest a "review" button separate from an "entry/edit" button. The review option would show what you entered and answered previously on the current return your working on.