I give it 5 stars for Dr. Rexing. There is some waiting and it is expensive but in my opinion it is worth every cent. I have a very skittish cat that was run over and had a broken pelvis. Less than a year later, she is climbing trees, has no limp and doesn't even seem to miss her tail. Dr. Rexing is an amazing talent, very compassionate and very tolerant of my emotional state during this ordeal.