I have never done well with learning a foreign language. However, I am up to lesson 13 and am retaining about 85% so I'm impressed with the program. The woman speaker is a bit harder to understand..
This lesson is great, IF you've had the benefit of something else before. I've done all of the Pimsleur lessons, plus some others. This one is great for filling in the details like grammar, including the tenses that I hadn't learned before.