What satisfied customers say about the Pimsleur KOREAN audios:

 Worth the money!
The repetition provided in the CD, pace and style of teaching is truly helpful for a beginner who's learning the language for the very first time. Unlike some other programs which teaches at a very fast pace, making one feels lost and confused, this one allows you time to memorize and digest what you've learn. Overall, I am truly impressed and will recommend it to everyone! -- Kori,Singapore

Best Audio Korean Lessons Available
This is the only audio Korean set you should consider buying. The rest are complete 100% GARBAGE! This applies especially to those who are going to DLI to learn Korean, as I did. This will fill the gaps nicely, as regular everyday speech is generally overlooked there. If you know you are going to DLI and really want to learn Korean, try to learn as much of this as you can before you go. The only other resource you might need outside of what you get at DLI might be a good phrasebook or two, such as Lonely Planet and/or Making Out In Korean. Again, this will help fill the gaps.
For most major languages, there are 3 parts to the Pimsleur set. For Korean there is only one, so this should be considered the beginner set--"Korean I". Hopefully, there will be a Korean II and Korean III eventually, but this is certainly a good start for those who are learning Korean for the first year or two.
Pimsleur language lessons are intended to cover speech only, but learning the writing helps you retain the language by putting it into a strange new context and forcing you to recognize it all over again. So when you have learned the writing and spelling of the vocabulary, it will reinforce the language to come back to the lessons and reproduce them by writing or typing. That's what I do anyway. (I can probably help the guy who wants a transcript, btw. No native Korean should have problem understanding any of this.)
As far as buying audio Korean lessons, there aren't many options available: you can buy this set or get ripped off because there's nothing else available that's worth any money at all! -- W. Frost (DLI Grad), Tucson, AZ, United States