On the plus side, the voice actors used in this course are very good. Most words are spoken clearly and are easy to understand.
The biggest downside with this product is the very limited vocabulary introduced here. If you are buying this course as a basic introduction to the Czech language, it will fill your needs very well. Although, is an "Introduction" worth the nearly $250 price tag? If you are buying this course in the hopes of carrying on a conversation in Czech, think again. There is just not enough vocabulary presented. This is solely due to Pimsleurs decision to waste vast amount of CD time, repeating past lessons. While repetition may be a very effective teaching tool in a classroom setting, it's a gross waste of time with recorded media. With recorded media, if I haven't mastered, or have forgotten, the vocabulary from a previous lesson, I can always go back and replay it as many times as is necessary. While reusing words learned in previous lessons, in new context, would be a good thing, don't waste time in following lessons repeating instructions and pronunciation that have already been covered. Instead, if Pimsleur had used that time to introduce new vocabulary, the course would have been excellent.
Another major short coming with this course, is the lack of any kind of written support material. For the $240 price tag, they could have included a small dictionary, or at the very least, a written list of the new words introduced in each lesson. Such a list would also be very helpful for review. Unfortunately, you get nothing. So if you want to review what a particular word means, good luck trying to find it among the 30 lessons. Perhaps Pimsleur intentionally omitted a word list so as not to draw attention to the very small number of words covered in the course.
The final major objection I have with this product is the packaging. Packaging may sound trivial, but if you want to use this course on your daily commute, or on a trip, plan on having to buy a separate carrying case. The course comes in a huge, gaudy, cheap plastic box measuring 11x13x1.5 inches. Making it totally impossible to pop in your briefcase. And what's even worse is that the case doesn't hold the CD's securely. Whenever I close the box, the CDs would come loose and bang around against the inside of the box and the other CDs. Obviously this would cause irreparable damage to the disks. Why in the world would they not package these disks in a small CD wallet with separate sleeves for each CD? Yet another very bad decision by Pimsleur.
Bottom line; think hard before spending your money on this course. Sadly, right now there are not a lot of Czech courses to choose from. I've taken two language courses by Rosetta Stone, and they are fantastic! Unfortunately, Rosetta Stone does not yet offer Czech. I also purchased the Czech course from the Foreign Service Institute, and it's nicely done, includes a larger vocabulary, and is cheaper than Pimsleur. (Plus it also comes in a nice Prologic Case.) However the vocabulary is definitely slanted to the requirements of the statesman/politician, rather than colloquial "on the street" Czech.