I've worked with many visual website editors (Wix, Dreamweaver, Adobe XD, Sketch, and so on) and Ion's creative studio is by far the worst I've ever experienced. This could be a case study in poor UI. Next to nothing is intuitive, from editing object styles to changing the name of the page. The control panel looks like a complete mish-mash of text as if they kept adding on features as the software progressed with no thought about organization, hierarchy of sections, or functionality.
Some of the most absolute, basic functions like copy, paste, and undo are non-existent. If you accidentally delete an object or want to copy an object with all the same properties, you are out of luck.
In the layout editor there are a huge brackets underneath every object, so it distorts the way the page will look live. The only way to see how it will look as you work is to preview the page over and over and over and over again. There is such a simple solution to this which is to highlight a box around each object on mouseover. WordPress's Visual Composer does exactly that so you see a real-time preview of the page.
Even the backend layout looks like it's stuck in the web from 10 years ago--a labyrinth of tables and clicks hoping to find where to click to accomplish what you're trying to do.
The support section probably ha some useful information but the search function is next to useless. For example, search for "edit theme" or "cannot select engage" and no helpful results appear, causing you to have to email support and wait for an answer.