The house was nice and comfortable with good bathrooms and kitchen. Beds were super comfy which is a huge plus, and the spa is lovely. The best thing is definitely the location, it's almost adjacent to a supermarket and in very easy walking distance to the town and all the bars/restaurants.
There were a couple of things which weren't so pleasant though. Despite us booking for 3 adults (and paying extra per adult), the third bedroom was locked when we got there. They assume that adults want to share a bed and claimed it was in the listing (we read and double-read it, is definitely not clear that 3 adults = 2 bedrooms. Also a bit misleading when you are searching Air BnB for a "3-bedroom entire property").
The listing also said a bottle of wine was included for stays over 2 nights, we didn't get one, but whatever it's the Barossa right. There was no remote control for the lounge room TV that we could find, but we figured out how to use the buttons on the bottom of the tv eventually. There were some incomplete food amenities included, i.e. bread and vegemite, with no butter so we ended up having to go to the shops anyway.
Overall a pleasant stay and I would definitely recommend to others wanting a house in Tanunda, but there are a couple of things they could work on to make it a 5-star stay.