Rental Maintenance Question

Rental maintenance question: If you are an investor with many properties and are not very handy, is it a good idea to purchase a home service warranty to cover certain items in the home should a tenant need maintenance? Is sending say $400.00 a year for the plan and another perhaps $75.00 per service call worth it or not? Do you offer this type of service to your tenant as say a security blanket so they know if any issues come up they would be covered?

I don't know if thats a good idea or not. Looking for some input??