Deluxe portable toilet vs standard for a November 2026 corporate event.

I'm planning a corporate client meeting for 80 people in a field next to our office building this November. The event runs from 9 AM to 4 PM with catered lunch and no alcohol. We'll have a tent and heaters, but the ground is grass and the delivery truck can pull right up to the site. I'm weighing a standard portable toilet against a deluxe unit with a flushing bowl and sink. The standard units get the job done, but I want the restrooms to reflect our brand's attention to detail. Has anyone used deluxe units for a professional daytime event like this? Was the upgrade noticeable to guests, and did the flushing feature hold up in cooler weather?