The view at Hewitson Winery was breathtaking. We enjoyed morning tea on the deck, and watched the sunset in the evening, and the best part was that we had it all to ourselves (in the evening anyway).
One thing to note, is that the deck is not part of the room, itself, but part of the Cellar Door which is separate to the accommodation. Despite this, we still had full access to the deck (not the Cellar Door) at all times, which was just a short walk from the room. With only two rooms, and a third under construction, it felt like we had the whole place to ourselves though, unbeknownst to us, there appeared to be a private event on during one of the evenings, so we retreated back to our room.
Laying on the grass, appreciating the well maintained vineyards, and watching the sun go down, was the most serene and relaxing experience I've had in a long time, but make sure to pack the mozzie repellent if you plan on being out there at dusk.
The only downside was the noise from the trucks hurtling down the road at all times of the night, and being situated right next to the roadside you'd hear it each time they went past. Fortunately for myself, I sleep with ear plugs due to my other half's snoring habit, unfortunately for him, he did not and was woken up each night from the road noise.
Overall, we thoroughly enjoyed our stay at Hewitson Winery, Frank was a great host, very friendly, responsive and accommodating. I would highly recommend this place to anyone looking for a nice getaway in the Barossa Valley.