What can you see yourself doing with the images afterwards and what kind of pics do you want from the event - do you want a photo montage, or a physical book to look? Do you want some group shots of your friends and couples that were there or funny, dressed up shots from the Photo Booth? Do you think your guests will get involved and dress up for pics or do you think you might you miss out on getting some pics of friends that don't go into the booth. I do love fun photo booth pics and you get some amazing shots from them, but you could just set up a dressing up corner/area with props and camera and then get a photographer in (who may be able to do a bit of both)?
Local photographer Anne-Marie does a lot of events and weddings as well as editorial work. Her website is very editorial based, but if you contact her she can show you her more reportage pics as well from events she's covered. She really puts people at ease and gets some brilliant shots https://www.annemariebickerton.co.uk