Our school always refers students here for drug testing and for TB (QuantiFERON) blood testing as well. It's all the way across town for me, but I have never had a negative experience so I continue to go back. They are always fast and efficient, and this was my fourth trip to this particular location. Today I was in and out with blood work completed in exactly 7 minutes. I'm a hard stick, and the phlebotomist got me on the first try with a butterfly (practically painless).