I like that it is easy to create my own page layouts by using drag & drop functionality which makes them very flexible as well! It's also possible use many different templates from other providers such has Adobe or Microsoft Office 365/365 ProPlus (Word).
The support team can be reached via email but sometimes you might have difficulties understanding their answers in English language so if they are not fluent enough with your native tongue then this could become an issue at some point during customer service process - even though everything else seems fine regarding product itself :) If used together along Page Builder plugin one of these products will give more flexibility than only HTML editor alone would provide without additional tooling / plugins needed :D.