Just a few thought ....
Do you live within a reasonable distance to the property in case of emergencies?
Do you know and understand all the laws (The Residential Tenancies Act2004 being the most important) relating to renting your property?
Do you know the Housing Standards for Residential Properties?
Do you know all a landlord's obligations and rights?
Do you know all a tenant's obligations and the tenant's rights?
What type of lease will you use, Fixed term, Part 4 or Periodic?
Do you know the difference between them and the tenant's rights for each?
Will you remain resident in Ireland for the duration of the tenancy?
Do you know the procedures required by law to evict a tenant for arrears of rent or other breach of tenant's obligations?
As a landlord, you are responsible for the anti-social behaviour of you tenants towards third parties (neighbours, and their property, excessive noise etc).
Do you know how to vet a tenant to try to ensure that they will be suitable tenants?
If you cannot deal with these and many other problems that may arise, you may leave yourself open to claims for damages from either tenants or third parties (often in the thousands of euros).
Having said all that, there seem to be very few estate agents or letting agents who are also fully fully conversant with all the renting laws and it can be difficult to know beforehand as to their competence in the matter.