Waipara is a fun little place to stop for wine tasting and Ardross house is right smack in the middle of it. Pegasus bay is right there and most vineyard are just a few minutes drive. This is also closer to the only good food in the area which is at Pegasus bay or in Amberley (Waipara is not a town for visitors....) than if you stay closer to Waipara "town" centre.
If you are doing wine stay for two nights. There are many excellent wineries to visit.
Michael and Kathryn are very friendly and helpful hosts. They serve a good breakfast with tasty local ingredients and jams. The rooms are large and in very good condition, as are the bathrooms. There is plenty of space to run around in the grounds, or indoors in the lounge. The old house is also quite the charmer.
If you have children the chickens (about 20 of them) are great fun, as is the lonely alpaca next door and the sheep nearby.