What I am looking at is that in my current scenario, most top-level items are either only top-level, or have a simple fly-right dropdown submenu, but there is one submenu, which requires plenty of real estate, which a mega menu offers. This includes non-clickable headers and a range of child links.
My other worry is that the element alone is effectively a dropdown button (please correct me if I am wrong) and that building up a navigation structure with correct HTML semantics requires quite a bit of extra divs/coding to achieve a proper menu structure.
The inline navigation element is excellent and is my preferred element for desktop use (having been an Ubermenu user beforehand). My ideal is to have a pure CS solution, rather than a plugin one.
I hope this makes sense?!
Christopher