We've been staying at the Mirsini Hotel during 31.08-28.09 with our 2,9years old son and it was a wonderful time, thank you both Petros and Despina! The owner of the hotel Petros and his son Petros were very helpful every time we needed any help.
We had a room with the sea view and it's true that it's noisy, but it worth staying there, the view is amazing! If you prefer sleeping in absolute quiet than it's better to take the room with the inner yard view: they are very quite. But if you close both balcony doors, the noise outside doesn't disturb you.
The hotel itself is nice and very cozy, the lobby has become my favourite place (after balkony in our room) for relaxing and drinking coffee in the hot afternoon. I also advise this hotel for those who travel with little kids: the location of the hotel is very convenient, there are 2 supermarkets within 10 min walk, wonderful cake shop - 5 min walk, the best sand beach in Agios Nikolaos (the sea is veeery clean!!) - within 5 min.walk. Who wants to enjoy the pebble beach - it's also withing 5-min distance. Thus, everything is very close, and even the city center is in 10 min walk distance, incuding the bus stop.