I stayed in the apartment for 4 weeks and I really appreciated the cleaning/changing towels every 3 days. It was very easy to communicate with the staff and they were accommodating to my requests. The apartment is quite big and spacious and I had all I needed for cooking, doing laundry, etc.
The only downside I would say is that the neighbours are quite noisy on the street, but this is not at fault for Lis Apartments - the doors and windows are good at isolating this.
The apartment is 20-30 minutes walk from the main shopping street, but public transport is also nearby and is convenient. The WiFi is very fast (approx. 200 Mbit) which was great as I was working from the apartment most of the time.