Real estate agent

I have been with Doyle Spillane probably in excess of 25 years, is it because I find they are excellent or am I too lazy to find another resl estate agency. During those years I have found them good. I was not happy this last week because my current tenant was living in my rented unit the last 4 days rent free. I had to email Doyle Spillane to chase the tenant up., whether they were top of it who knows. No one is perfect. Probably I should on but my late husband thought they were good, and I have left my business with them. I alway wonder is the owner the customer or the tensnt.