Katerina's apartment is very nice and well equipped. It was comfortable for a solo traveler. I stayed for 5 nights. I enjoyed my stay and had everything that I needed to cook and work on my computer in the apartment. Katerina provided some food (coffee, water, eggs, bread, cheese) so that I had fewer things I had to purchase when I arrived. The location of the apartment is excellent, just outside the Venetian Walls in a quiet neighborhood but within walking distance of the Old Town area for dining, shopping, and bus stop access. I had good internet during the week, but there were connectivity problems over the weekend. I reported this to Katerina and she said she would contact the internet provider. The internet worked OK on Monday, which was my last morning in the apartment.
There are three things that I want to point out to other travelers. 1) Be aware that the apartment does not have a lift, and the stairs are curved in places so it may be difficult to haul heavy luggage up and around the curve. I had trouble balancing my suitcase on the narrow curved steps and had to carry my luggage up in 2 trips. 2) During my stay in late April 2022 there was construction occurring in the building, and it was quite noisy during the day. You may wish to ask Katerina the construction status if you are staying in the spring of 2022. 3) There is a continuous steady tone that is audible in the apartment, although I think the origin of the tone may be external to the apartment. It sounds like tinnitus (ringing in the ears) after hours of droning, so I recommend traveling with ear plugs if you are sensitive to noise.