Hotel Tonight but for Haircuts?
Would you use a service that lets you schedule an appointment online with a service provider like a barber or tax accountant when you need them?
For me, things that would fit better in that category are when my wife bugs me that we should do an exercise class tonight, and I don't want to be bothered to search through the 5 yoga studios or spin classes near my house to find an open class.
My $0.02