The apartment is new and very clean and we had overall a great two week holidays on Naxos. However, I need to point some things out which we haven't read in previous reviews of this place. It is situated basically on a farm - so at 4 am every night the roosters start to crow, on one night a cow mooed for the whole night. For people who have shallow sleep like me - this will wake you up, unless you close all windows and use the AC which might not be an ideal solution for everybody.
The apartment is first in line so it can get very windy on the terrace but it helps with the temperature most of the sunny days. You can also hear planes landing and taking off, although this didn't bother us since there are only a few of them each day.
Also, we knew the kitchen was small, but we didn't know it was almost empty. For a 2 week stay we wanted to cook more, but the lack of basic utensils and even a cutting knife was quite a problem at first.
What was the biggest problem was actually the road leading to the beach. Even during the day we found it dangerous to walk on, it's twisty and with very poor visibility for the drivers to see pedestrians, not to mention it's very dark at night as half of the street lamps don't work and there is no pavement. We ended up renting a car for almost whole stay to avoid walking this short distance, otherwise we would rent it for 2-3 days, so add that up to the price of the apartment.
I do not recommend renting a car in Motonaxos - it was the only place where I used my credit card during our whole stay and where they copied my CVV code for deposit and shortly after we returned the car somebody tried to use it for transactions in Greek online beauty shops for several hundred euro, luckily I declined all of those so no harm done, but it seems somebody stole my credit card data.
The host is helpfull although he does not stay at the place and you can contact him only via airbnb. His parents at the place seemed very nice, but we can't say much more since they don't speak english.
Overall, considering the price of this apartment it is a good value for money and we can recommend it for shorter stay. Agia Anna is a great place to stay, close to marvelous beaches and close to Chora, with many restaurants and bars. If we were ever to come back to Naxos we would chose something closer to the beach even at the expense of the looks of the apartment.