One advantage of arbitration is that the dispute will be resolved more quickly than through a court hearing as a date for arbitration can be obtained earlier than a date for court. It is also usually a lot less expensive and cheaper than the courts and more practical to prepare for. If arbitration is done through writing, then witnesses don't have to travel and take time off from work etc. Face to face arbitration doesn't always require expert witnesses as the arbitrator who is usually an expert in the field can deal with it.