The apartment is great, and I was happy to stay there. Yet, there were two issues:
1) Unstable internet connection. I was unable even to surf the internet for 10 minutes without facing a connection problem; making a call was absolutely impossible. As a result, I bought a Wi-Fi repeater (aka range extender), which solved the issue. Unfortunately, the landlords ignored the problem.
2) The apartment is too dark, especially when it’s cloudy outside.