I rent out my house in UK (bought and lived in for a year before I married and left to live abroad). The first two tenants were long tenancies so, apart from general repairs/improvements/management fees/mortgage, I made some money. Fast forward to this year and it was empty for the first five months of the year - and has been costing a lot of money!!
It's never-ending (had to do some repairs, decorate, pay council tax and utility while it was empty etc). It has made me realise how lucky (spoilt!) I was to have reliable, long term tenants and I wish I hadn't frittered away the rental income as much as I did. (Lesson learned there at least.)
So now, it has just been re-let for a 6th month tenancy. However, I am debating whether I should sell it and invest the money (in what?) or just accept it's been a bad year and hope to get some more longer term tenancies (and be more sensible saving the income to pay for times when it doesn't let as quickly/need to pay for repairs etc).
FWIW, it's a lovely little house in a great location!