Excellent!
Very stable and fast internet and wifi connection.
We worked remote in the apartment for 5 days and had no issues.
The apartment was incredibly clean and you find all the amenities you can imagine.
There was some cool water in the fridge when we arrived.
The location is great, next to a nice park. You can walk to the historic center in around 30 minutes. Uber (Taxi) was around 5-6 Euro.
The communication was excellent.
I can only recommend!