We were staying in Hotel National for the Christmas'09.
First impression was that hotel certainly needs renovation. It was very clean and maintained, but the rooms and facilities were from 70-80's. There was no one big / king size bed, but two separate beds with huge "valley" between them. Otherwise the furnitures were old and basic.
Hotel breakfast was good, and dinners pretty good as well, but the wine list was not as good as usually in this kind of "better" hotels. The service of the staff was good, and there was enough staff for quick and friendly service - however there was quite a few guests at that time.
The hotel location was quiet and close to SkiBus route - however when you come back from skiing you have to walk small hill up to the hotel - but hey, you're there for the sports anyway! :) Otherwise all the services of Davos Dorf are nearby, which is really good.
One big minus is the skiroom, as it really is only a room for skis - no dryer for the boots. You're supposed to take the boots to the room and dry them there if you can... But you can walk to your room with the boots!
Also sauna/spa would be nice, but we already knew the lack of it when we made the booking. But you can use nearby hotel facilities for free if you want.
I was about to give rating "GOOD" but as I can't recommend the hotel in current conditions, I lowered my rating to "average".. But there really is nothing terribly wrong with the hotel, it just was not exactly what I expected for the price.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC