Anyone Use Untington Hilton's Shuttle?

I booked one for my wedding and when I was booking it, they told me it would make as many trips as needed, back and forth to the Riviera...

However, when I went there to look around the hotel (after the fact) I saw a sign at the front desk that listed couples and their reception hall and a time underneath...making it seem like the shuttle only goes once...

Does anyone know what the deal is?