The place is in the heart of Old Town, yet the room is quiet since it's in an alley. You will get a good night's sleep. There are neighbors across the street who might wake you at 7-8am with chatting, but nothing major.
The room is basic and clean, with a/c which was a big plus since Chania can be very hot. All the restaurants, etc are close by and the public beach is a 15-20 minute walk, also a 5-10 minute walk from the bus station.
I would stay here again for sure.