Amount of content in Pimsleur 1-30

I have gone through the first 3 units of this 30 unit course. I’m worried that there won’t be enough content…

So far lesson 2 and 3 have not changed topic at all, only improved upon the conversation i learnt in unit 1. This is’nt a bad thing, however both these lessons 1 hours worth only extented my vocab by about 6 words.

For example, unit 3 was 30 minutes and only added the words “but”, “thank you” and “and you?” to the conversation I already learnt.

At this rate I cannot see many topics being covered in 30 lessons.

Am i missing something here? Is there a whole other phase after phase 1? If so I cannot find it.

Thanks

hi,
Can u tell me where I can get audio lessons for GRE test?