We really liked the apartment, especially the amazing view from the balcony. We didn't notice any major problems, but a few small improvements would make the stay even better: add a hairdryer and an iron, as both are inexpensive but very useful. It would also be nice to have basic kitchen essentials such as salt, sugar, spices, and cooking oil.
The metal bed in the bedroom looks nice, but it squeaks loudly every time someone turns over. Tightening or lubricating the frame would solve the problem.
The biggest issue was the cleaning. On our first morning, the neighboring apartment was cleaned at around 6:00 a.m. The cleaners were moving furniture, banging the window shutters, and making so much noise that sleeping was impossible, even with earplugs. Please avoid such noisy cleaning early in the morning.