Our stay at Jovita and Alexandra's appartment was really good. Communication with them was easy and fast. They make an effort if you have any questions or need something (like a taxi to the airport).
The appartment is in a very nice location and has plenty of good restaurants and bars around (they also provide you with some good tips for those) and is within walking distance of most of the sights.
The appartment itself was very clean, is fully equipped for self-catering, has a great shower and a nice small balcony. It think the only downside is that it was a little bit noisy (you can easily hear people walking in the stairway or in adjacent appartments), so if you're a really light sleeper that might be a thing.
All in all it was a very good experience and I would recommend this appartment to other travellers.