The main problem I noticed with the Spa style is that the rows are not full width on the front page (I haven’t worked on any other pages), which make the theme look very bad with cutoff background colors and background images — but it looks very different on Visual Composer. In general, most things don’t display right when the page is published and viewed normally.
Here’s two screenshots — one of the site as seen by admins and guests, and the other from visual composer.
Visual Composer View

Regular View
