It seems that at least all new stuff in Max will be QT and will get the updated GUI style from now on as seen with the newest modifiers: Chamfer, Data Channel, Path deform etc. Don't keep this new style only for the new stuff ! this will only add to the countless UI inconsistencies. Start to update the other modifiers and the rest of the UI with this new style !
Better spacing, bigger buttons
Cleaner, more readable menus
New Old