We rented ours out for the three years we have been in Aus a) because at the time we had to leave in a hurry and b) were just on a temp visa.
The agency we used took a management fee and looked after any issues, we just got an email to confirm the costs for repairs. This worked fine for us, but is an expensive option, you could waive this if family could step in for example.
Things to bear in mind if you rent IMO: have some spare $$ in the bank to cover any periods with no rental income, tenants come and go, they might not replace immediately. Accept your home will no longer feel like your home once it has been rented out. Our tenants were reasonable people but still made changes they were not supposed to, and I now have to replaster, redecorate etc. Accept that the house will generally need some TLC if you return, to cover things an owner would do but a tenant may not i.e. proper gardening vs just cutting the lawns, paying attention to fixing little things here and there and generally not loving the place like a proper home (because they are just renting!). Also you will have to declare the rental income in your tax return, rules vary depending on your type of visa.
Personally, I am very happy to have rented out, I am now returning and have a house ready for me, plus the mortgage has been covered and it is a good investment for us. Everyone will have a different situation so I can't say what you should do, maybe if you stand to get good equity from the property now then try and sell? Good luck anyway.