Nina's place is good but, from my personal point of view, somewhat overpriced even for the Antiparos crazy summer prices. The overall impression I had from photos was that the place was if not luxury something very near to it. Reality was a little bit different:
Pros:
very good location, a lot of space, very comfortable double bed (this is definitely a value!), Nina was very helpful and the place very quiet, we could use the washing machine for our clothes too.
Cons:
we found the house a little "left on its own" as it was not managed that much. Some issues I remember: bathroom with shower to be fixed (I actually fixed it with some black tape);
kitchen with the essential but really nothing more (as a cloth to clean it, or something to heat the milk in the morning, or anything to use the oven) so if you want to use it to cook your breakfast or meals be prepared to buy what's needed; lighting in the house is not sufficient (only one bulb in the main room), you don't have light on the kitchen nor on the mirror; there is no TV (for the "level" of the house this might be considered); the private outdoor space has a sofa and an armchair but both are extremely worn out and effectively not usable - we found this really a pity as the outdoor space was the one we counted on for our stay.
Anyway we had an average good time at Nina's place, I just want to stress how with just a little bit of more attention to the house and its details, the place could have been perfect and in line with the economical request. I think this could be easily done.