Before I bought this, I was taking my cat to the vet twice a week for their laser treatment on his hips and very tip of spine. This was a very successful treatment option for us. He is a CKD kitty and is limited as to what he can tolerate in the way of pain meds and so I am always looking for alternatives. But this equates to $70/week plus it stressed me out and the cat as well. He hid when I left and hid when I came home. It was no fun for either of us and I decided to try this laser at home to see if it helped. It is pricey, but I did the math and it will pay for itself quickly (and in emotional dollars even quicker). I use it in the morning and evening, about two minutes for each hip and 2 minutes for his spine. It works as well as the vet's laser did as far as the lameness and limping in his back legs. The vet laser works great most of the time, don't get me wrong. But it does not work well when your cat is stressed (per my vet). My cat plays and jumps and does very well since I started using this laser at home, just as much so as when he did at the vet.