Our stay at Quinta de San Bernardo was one of the best hotel stays we have ever had. The attention to detail of the staff is top notch and the grounds are absolutely beautiful. The food is excellent and they make a concerted effort to minimize waste while maintaining inventive and delicious dishes. You can certainly run up quite the tab, as everything is pretty expensive compared to elsewhere in Portugal and the property is pretty remote, but I would still say it was absolutely worth it.