I must say i was pleasantly surprised when i arrived.
I'm used to that whenever a hostel is cheap, its dirty and bad.
Casa Arrieta is none of the above, its one of the best hostels ive visited so far.
The beds for example are cleaned and made, then they seal them before you arrive so no dust can enter.
In the rooms they have lockers big enough for me to store 2 big backpacks, they have both AC and fan.
There is a hot shower which is most welcome.
If you want breakfast you have to buy it yourself, but there is a fridge there for you to store groceries in.
The staff is super friendly, i was sick and they offered to get me medication, food etc.
The location is decent, a 20 minute walk and you're in the centre, if you pay around 60 peso you can go to Robinsons place mall.
If you're going to Dumaguete, i recommend that you stay here, they help you with all information they can provide.