More configurable, but certainly not better. It's a major pain to set up, since everything (fonts, titlebars, desktop panels, icons in various contexts, scrollbars, cursors, GTK equivalents to the above) has to be set independently, and many things still aren't capable of automatically scaling at all, like checkboxes, anything using KWebView (like konqueror or khelpcenter) or Aurora themes. Some parts of (say) Amarok's interfaces completely glitch out when scaled past a certain point.

For this particular subject, my money's definitely on the "just works" solution.