You get a wedding planner to help you out with everything a wedding involves like finding and booking the ceremony & reception venue, planning the whole concept, mood boards, supplier negotiation, timelines, keeping budget....should I continue?
You love being hands on by planning your wedding? Wonderful! Then on the day coordinator is what you need. Everything you have been carefully planning all these months will be in the hands of your coordinator and she /he will be the main point of contact on the day, doing all the nitty gritty for you.
Still in doubt?