Hi there Nicola,
SNAP ! Already booking my holidays there for September too ! The weather is still supposed to be lovely, although I personally cannot reccommend places to stay in Hanioti because I stayed in Polichrono - we do know a great bar/hotel in Hanioti right in the centre called Blue Bar - the guy that owns it is great - But I shall ask some friends in Hanioti where the best places are - and will get back to you..
Kate