It has now been 4 months since my services and I couldn't be more satisfied. I only had 20 units of botox when I went so after 4 months I am wanting to make an appointment soon. The time frame averages 6 months but that applies primarily to results from more units. I did have a minor issue during the first month in which I called to see what my options were. It was handled within 1 day, professionally and to my full satisfaction. I see others have left negative reviews in which I personally saw no merit. Just like a hair stylist or gym, we don't all have the same taste so possibly it wasn't a good fit. However, for me, a professional who works in management and customer service, I highly recommend Dr. Nadir and her team. I actually drive from North Scottsdale to see her!