I stayed at Farewell Gardens for 2 nights, in a tent. It was my first camping break on my own so I was a little unsure of what I was doing but the managers couldn't have been more helpful. Really lovely people.
The site has the friendliness and cosy feel of a small site, but has amenities one would expect at a larger site - heated showers (no extra cost), laundry, well equipped kitchen, a communal dining/lounge room (which was useful due to the torrential rain we had whilst I was there!)
As mentioned by another reviewer, the pitches are grassy and level, and the ground was soft enough to make pegging the tent easy but not so soft the pegs came out in the howling wind we had. Very sheltered pitches was a blessing. I felt the pitches were a little close together but the planting between gave an element of privacy which helped.
The area is beautiful - walking distance to the Farewell Spit nature reserve and cafe, and a short drive to Wharariki beach, both of which must be visited. Eco bus tours to the Farewell Spit lighthouse can be booked from the campsite which is another must do if at all possible.
Not the cheapest place around but well worth it. I'll definitely be back again, I loved it there.