I got the Pimsler CDs, in my opinion so far they are *excellent*. I really like the format, the "teacher" speaks and directs you in english, but your comparative speakers (one male and one female) are native speakers who speak quickly, but they slow it down and do syllable by syllable for the hard words. They slip in some review in the middle of learning something else, just to keep you on your toes. And they push you on the pronunciation and stress. They suggest NO side materials or written materials while you are learning to speak the language, and I have to say I agree, I'm internalizing it much better this way.
Has anyone used Pimsler or any of the other audio learning methods? Do the other ones do it the same way as Pimsler? I find I'm only missing the written word in a very tiny minority of cases, ones where I'm missing a very softly spoken unstressed consonant, like the "n" in "ochyen harasho". I was skeptical before I got it, but now I'm hooked. I figure I'll work my way through the whole thing (while driving to and from work), THEN check the spellings of the words I've learned, maybe after I've gone through each ten CDs or so.
Plus, if you drop the book and stick to the sounds, you recreate the proper sounds much better. I find I'm producing last sound of the ya form of the verb as something halfway between yo and yoo without even thinking about it. I'm just copying the voices on the CDs.
Anyone else want to chime in?