First of all, the hotel has a good beach and a good location, it's a bit far from the railway, city centre and the highway.
Water in the lake is clean&warm, but the swimming pool is cold. Anyway, in bad weather it's better to go sightseeing in Klagenfurt (20 km), Lignano (200km) or Venice (~250km).
The rooms are also small - for example I saw a single room that is just about 10 m2. Like in a Japanese hotel. Service is average - one evening we ordered twice, but noone came.
The hotel was five stars in the past, but now it's 4 stars. If family Hinterreger
P.S> There are some problems with parking, Internet is very slow (15-20 KB/s) - if you want to call by Skype or surf the Internet, you'd better choose a mobile Internet.
(Username of the local Wi-Fi is "parks", password is "parks10".)More