Elizabeth's place is great. The space is very private from the house but Elizabeth makes herself very available in case you need anything and is very responsive over email before you arrive. She even went out of her way more than once to check if a parcel that was being sent to me arrived at the post office.
The kitchen amenities are more than enough to cook some proper meals and th shower is really good. In addition, the TV with Netflix is great to pass the time in the evening or if the weather is bad and otherwise there is so much to do in Queenstown and the surrounding area and Elizabeth has provided a folder with lots of local info and will answer any questions that you have.
As I was there over Christmas Elizabeth and her husband were kind enough to invite me to join them for Christmas dinner, which I was not able to do (my fault) but we had a lovely meal together on Boxing Day and I really enjoyed talking with them.
Yes, the place is up a steep hill but without it you wouldn't get the amazing view and it's much better than any view you will get from the centre of town and so it's totally worth it. You will also have a head start on the Queenstown Walking Track which is up that hill and which is a must for splendid views!
Overall highly recommended and I would definitely stay again if I was in Queenstown.