A week ago, I got Botox on a groupon/city deals/living social type thing. I was nervous that since I wasn't paying full price, I would have a physician who wasn't that great and I would have side effects. However, I had a great experience.
We did 20 units in between my eyebrows and on my forehead. It was mostly pain free, I was told not to exercise or manipulate the area for a day. I did experience some bruising (I bruise easily from anything) but my doctor used ice packs and gave me some for the road. Bruising went away after a few days.
I have been very happy so far- My forehead looks great. I can't make any crazy mean or surprised expressions, and everything is even. I love it. I am doing this every year from now on.