These proponents of maintaining the FAA as is have even argued that in certain areas, the perceived gaps in the FAA are improvements over the Model Law. For example, since challenges to arbitrators are rarely successful, they consider the Model Law’s procedure for arbitrator challenges at the beginning of the case to be a waste of time. They contend that the FAA’s approach of allowing a court to determine an arbitrator’s jurisdiction is also more efficient, as the determination can be made in a court while the parties are choosing an arbitral tribunal.