No. Of course there are lots of things to consider other than an excellent instructor.
As far as I know Wings Flight Training has two of their own single engine training aircraft, which is sufficient for the volume of training they are doing at present. Plus they have access to other aircraft based at Palmerston Airport for training if they ened. And they are due to add two more single engine and one twin engine aircraft to their fleet to cater for the increased volume of training they expect to do this year.