Day of Coordinator

I've been on the fence about this for quite some time. I don't know whether or not I should get one. I'm kinda worried that I am going to be running around like a chicken w/o its head on the day of the wedding, but at the same time my mom says it's a waste of money and that's what I have family for, to help out. Not for this to come out the wrong way, but I don't know if I can trust my family to help since a lot of them are in the BP and will be concerned with their own issues that day (entertaining OOT relatives, etc). I know what I want and how I want it (like specifically setting up the cardbox or decorating the place card table a certain way) and if I can't do it myself bc I'm busy doing other things, I want to have someone who I can trust do it for me right?

Now as I'm typing this I think I just decided that I do need to get a DOC. So, I guess with that said (sorry for the mini-rant!) if you guys can recommend a DOC that you know and LOVE and is reasonably priced, I'd really appreciate it. TYIA!!