Karl has been very helpful in making our stay a relaxing experience. He provided towels and linen as well as power adapters and and a soundbar. This allowed us to travel lightly (only carry-on luggage for a one-week stay). He even filled the fridge with some bread and cheese on our late arrival the first evening/night.
The apartment is modern, clean and welcoming. It is very bright at day (large windows) and night (bright lights).
The beds are rather soft but still OK.
We are looking forward to coming back some day!
BTW: There is a very nice family operated Maltese restaurant called "Zozi" around the corner (avoid the Mexican restaurant across the street!)