I've had Botox before but was offered Dysport for free because my medical office was training a new P.A. I thought I'd take a chance and try it. The did my crow's feet, forehead and frown lines. It started to work within 24 hours and now one week out it looks great! I had to share my experience after reading all the negative reviews. I think with the proper technique, both Botox and Dysport can work great!