I spent a pleasant week at Dimitris' studio at the beginning of May. The location is excellent, just outside the walls surrounding the Old Town, 5 mkn walk from the bus station and the beach, around the corner from a big supermarket.
The beds are hard, which was good for my back, but might bother some. The bathroom is tiny, with a small space next to the toilet for shower, but it worked well for me.
The first week in May, parking was a nightmare. I cannot imagine bringing a car to such a central, thus crowded, location during the summer!
Dimitris is an organized host, who responds promptly.
The studio is great if you plan on staying in Chania without a car.