In short: amazing!
In detail:
Des' been to Olympics two times so the property has plenty of awards and all the related artifacts. Be prepared to spend at least an hour just exploring the house :)
Bedrooms and beds are very comfy. Flat TV, internet, great cooking facilities, parking and outdoor area. Everything you need.
The view from the living room.. Just the lake and the volcano. Massive viewing window and sofas (of course, binoculars are there also!)
And all the tips about what to visit etc. Invaluable.