The Yacht Douro experience was great. We arrived and the boat was spotless inside. The host had organised for the boat to be cleaned outside by the marina staff, but it hasn't been. However, this was quickly rectified with the flybride and the outside areas being cleaned immediately. The boat is well equipped and there is much more space than you would imagine in the bedrooms for clothes etc. with hidden compartments everywhere.
The Yacht was comfortable with plenty of indoor and outdoor space for us, 3 adults.
The bathrooms are very clever In their use of space, and the showers are great. One point to note is that you cannot flush paper down the toilet. Initially I found this quite strange, but apparently it's quite common practise on boats.
The Marina is very quiet Monday to Friday, but the weekend was very busy. It is expected you pay to bring the boat out on a trip, for which you have additional costs.
All in all a pleasant stay and we would go back.