I stumbled upon this excellently programmed podcast back in Spring and I am ever so glad that I did, because I think it is one of the major reasons for my improved listening ability. One of the things I believe Stanford’s program doesn’t get right is the listening speed. We learnt grammar properly, vocabulary was good and we spoke about as fast as beginners at our level ought to, but we sucked at listening. This is because the teacher always spoke at a slower-than-normal speed which we could easily understand.

What you are doing right and the others aren't is two fold.

First of all, you have a progressive series. A person can actually start from the beginning and work their way up to a conversational level. All the words are accounted for. You remind people of what is new and what has been covered already. You remind them in Chinese and use English sparingly.

This is the way that it should be done. After the initial stages, a language should be taught in the target language as much as possible.

The second thing – Lessons are introduced in Chinese.