WiFi is bit slow and only 2 clients can be connected at same time. For "normal" people it's ok, but if you heavily depend on Internet, buy prepaid SIM card for 10 EUR in Villach, you get 1 GB high speed Internet. Advice to owners, improve Internet speed and I would give you 10/10. Now "just" 9/10.
Location and comfort of appartment. Villach is just less than 10 minutes drive from appartment and in 20 Km distance you can find more ski resorts than you can imagine. Also, 3 lakes and many nice small towns and villages. Italy and Slovenia are just 20-30 minutes drive, ideal for daily trip and sightseeing. Frau Putzer is great host, we felt like at home. Appartment is fully equiped, big, spatious and clean. Extremely good value for money.