The beauty of a planner is they can do as much or as little as you'd like them to do. Some people say, “ yeah, well I don't want to hire a planner because I want to plan my wedding” or “ I can use that money in other areas” which is true BUT one valuable thing that planners bring to the table is peace of mind.
Whether you hire a planner for the day of, a planner to plan your whole wedding while you just show up and say "i do" or you plan alongside them. Every step of the way a planner will give you a sense of peace that everything is taken care of.
Planning a wedding without a planner is like driving a car with no rear or side view mirrors. If the distance is short you can get away with it but the longer and complicated the drive the more risky it is. Planners see what others don't, we plan for the unimaginable and we usually bring vendors to the table that you know will show up and do a good job the day of your wedding. The last thing you want is to be doing your makeup on the day of your wedding wondering " Did my wedding cake get delivered ?" .