We are a family of 5 and we spent 10 great days in Arta. Here are some pros and cons for the accommodation:
Pros: The location is great, right in the center and the house is spacious. Having 2 big bathrooms when you return from the beach is wonderful:) There is a dishwasher (with some tablets) and this was really great for us. We also found hairdryers in the bathrooms. There are spare bed linen if you need to change the old ones.
Cons: We had to buy everything: salt, sugar, garbage bags, soap, washing powder, oil, toilet paper (it was some toilet paper but not for 10 days) There are no extra towels so we have to wash them (problem is it took a long time to dry them because there is no sunshine in the patio)
Things good to know: We found parking near the house most of the time and, when we didn't, we have parked near the castle, 5 min walk. The house in an old majorcan house, so it is dark and has an old smell (in the grounding) The kitchen need to be updated. There is a pastry shop 20 m away where you can find bread and other goodies. There is also an Erosky supermarket at aprox 150m. There is a bell somewhere dinging at every hour and half hour:) There is no AC (we didn't need it in september) but there are fans in every room. The double bed is very beautiful but a little narrow (i think is 1.50 m width) If you have a car, visit the whole island, it is really beautiful.