Managing rental properties is bread and butter stuff for a lot of RE agents. Just make sure their rental managers are going to give you what you want and need – e.g. not protect you from tenant complaints and bad news – and that they will treat tenants with respect.
After a few years in the front line, often dealing with “difficult” tenants, from the entitled to the slackers (and sometimes both), rental agents can sometimes, understandably, become a little jaded.
Some rental agents will protect you from negative comments about your property because they don’t want to be the bearers of bad tidings. Just make sure you tell them how much you want or need to know about the tenants and the tenancy.