A review for VIKING Seasonal Maintenance

We signed a seasonal contract with Viking Seasonal Maintenance this winter (2009-2010), for snow removal from our driveway and paths. Our contract was set at 5cm. This year we haven't had 5cm even once! But Viking has come everytime we have had more than a dusting of snow. I was afraid I had paid for a season without any work being done, but Viking has pleasantly surprised me.