I take a return flight every week on an ATR 72-600 on Air NZ. They are fine enough and I have flown through some hairy weather that only NZ can throw at the skies. I am booked on a White ATR this summer LiS-BIO. Although the last rows are best for a quick getaway, they also experience more of the tail fish effect in windy conditions so sitting nearer the front is better for a more comfortable ride. However, I take seat 17B/C every week and have never been affected by air sickness.