My girlfriend and I came here for our anniversary and it was a dream. I live in Portugal, and this is the best service I've had in the entire country.
The hotel itself is small - there are only three rooms - which is fantastic, as you don't feel like just another guest. If anything, when you go downstairs for breakfast, it feels like you are home. The staff are universally friendly and all speak many languages, including English, Portuguese, Spanish, and French. Silvia in particular was incredible.
I called ahead, and they organized flowers and champagne for the room when we arrived. When the room we were given didn't have the view I expected from the photos here (two rooms have the view of the valley, and one to the east), they upgraded us without hesitation to their best room, since it was free. The whole hotel is extremely well designed - homey but modern. They have contacts seemingly at every attraction, vineyard, and restaurant, and were able to call for us to schedule things - even when the public phone numbers weren't working.
They have straight five star reviews for a reason. You won't be disappointed.