My wife and I stayed 8 days in Agia Anna at Irenes. The studio was very nicely cleaned on arrival and already before checking in Irene was very helpful and communicative. The studio is located around 300 m from the beach and the walk is easy. The local beach is very nice and not so populated - even in peak holiday season.
The town is fairly small and there are good bus connections both to the other beaches and Naxos town.
Overall a very pleasant stay with a very engaged host! Definitely a recommendation from us.
Emil and Ditte