The sheer size of refrigerators and freezers makes them difficult to maneuver. They will typically be a tight squeeze through most doors and stairwells in your home. Consider that they are commonly placed in basements and you can understand why people dislike moving them.
Refrigerators and freezers tend to have few good handholds. Those that they have tend to be sharp-edged, making them painful to use.
We strongly recommend the use of an appliance dolly to move these items about. An appliance dolly has a built-in strap that is designed to secure items. They can be rented at many U-Haul locations. Ask for a quick lesson on the proper use of the strap when you pick up the dolly. Many people use these improperly which can lead to accidents and damage to your goods. Used properly, the strap will be pulled very tightly around the item with no sagging.
The backs of refrigerators and freezers tend to have easily damaged cooling assemblies. This can make them tricky to load. Some of these assemblies have slightly sharp edges that can mar walls and furniture, and even cause cuts on hands. Also note that the vent at the bottom front of many refrigerators can come off. Look to see if there is a drip tray underneath the refrigerator before pushing the dolly underneath.