Letting people resolve their disputes without resorting to the regular court system is a good thing. And the door is open in nearly every country I know of, since arbiters are cheaper and work faster than a court; many have specific areas of expertise, unlike the average local judge. Moreover, if your basic legal rights are violated in such a process, you can sue in a regular court -- for example, if the other party doesn't abide by the arbiter's ruling.
The problem with the proposed scheme here is that the public will probably be paying for it, rather than the parties to the dispute.