I have had my walk behind lawn solutions aerator for a couple of weeks now and it truly has been amazing. I have used it on steep back yards where I would not have even attempted to use a lawnaire and the LS handled it side ways, up & down. It pulls great cores and I was surprised how well it did pulling cores in a few dry spots. The ability to go backwards and turn really makes it easier to get into small places, under swing sets, around plant beds, trees, etc. Although the machine itself is faster and more productive, I believe the big savings is with operator fatigue. The motor is smooth and I even had a customer comment on how quiet it was as they initially were concerned when I arrived because they just put their 2 year old down for nap. It has easily paid for itself.