Developing a dynamic and fluid site is no short work. This site and it's sister sites will always be under construction in one form or another. New features and bug fixes are added almost daily as development continues. Back-end and Front-end changes occur often so don't fret if the site you visited yesterday looks different from today.
All currently displayed options of the site are available and deemed "Ready to Use". Placeholders are marked accordingly with "coming soon" text to denote development hasn't reached a milestone or stability for public use.