I enjoyed staying at this flat. While everything was not perfect, it was acceptable. One outstanding fact about the flat was that I lost my keys to the flat on a journey between Ostava and Prague. I called Katerina and between the employees of the Cukrarna and Katerina's daughter, I had a new set of keys in about 15 minutes. :-)
The front of the flat faces south and the rear faces north (towards the garden). The flat did get a bit warm during temperatures in the mid 30s C, but it was not uncomfortable.
The transit connections are great! The A line Metro is one stop away from Sparta at Hradcanska. The trams that stop at Sparta will take you to many different parts of the city.
I loved the location being across the street from Letna Park and also a short walk to Stomovka Park. You can ride the tram to the Billa Supermarket and back in less that 10 minutes, for easy shopping.
The good things about the flat are:
1) The space. The rooms are very large and comfortable.
2) The kitchen has a large refrigerator, a dishwasher and a clothes washer. There are also numerous cooking appliances as well.
3) The bedroom has a king sized bed and a sofa as well as a chair. There is also a large wardrobe for your clothes.
The not-so-good things were:
1) Right side window shade in the bedroom would not pull down. This made it difficult to sleep after the sun came up in the morning.
2) The fan in the bedroom did not work.
3) The internet was only functional for about 2/3 of the time I was there. I could use the Cukrarna's internet signal if I sat on the toilet.
Overall, I would recommend the flat. Katerina and her daughter were great hosts. The lack of internet was a bit annoying, but I survived. :-)