Our whole stay at Casa de Flores was perfect.
The location of the house is great and you are close (5-10 mins by car) to all the important places that must be visited in Milos and if you have a car (which I recommend) there is plenty of space to park. The house itself is exactly as depicted in the pictures, spacious, well renovated, and everything worked fine (wifi, kitchen, water, washing machine, etc).
The house was great, but Thodoris was even better. He has been the best Airbnb host I have ever had. He was helpful (he picked us up in the port and arranged a taxi for us when we left), and gave us great tips to visit the island, which made our stay even more enjoyable.
I wouldn't doubt to go back and we are looking forward to visiting Casa de Flores again.