I have purchased Cudoo's ASL course from one of stackcommerce's ads on Facebook, from the ad the course seemed interesting to learn and a good skill to add on. I have recently finished level 1 and started level 2 today. The course is informative and very user-friendly. They use videos to show you exactly how to sign in addition to a small paragraph that explains in detail how to sign. The experience of it all is good and the process is good as well. I would recommend this course.