I'm very pleased. Be sure to have them email you the instructions. Do not follow the instructions on the box they are inaccurate. Also very pleased with the email communications. All responses were quickly responded to. Within minutes! Superb service! The service person that I spoke to was incredibly helpful immediately to all my questions and help me through step by step. I ended up adding a little bit more water in the end. I was a bit thirsty. But I passed no problem.