For me, it's the same instructors I have loved for so long
Mainly, Kelly Coffey-Meyer, Leslie Sansone, Tracie Long and I am just now "rediscovering" Chris Freytag. I don't jump around between too many different instructors, unlike many people, I tend to stay with my favorites FOREVER
Although I have tried workouts by others in the past year or so, I always go back to my "tried and true, GO-TO" girls