Bach's music, both vocal and instrumental, is beautifully rendered in this set. No complaints there. So what's not to like?
First, there's the problem of finding any particular chorale. You have here 389 chorales spread across 6 CDs. The tracks on each CD are numbered only for that CD; there is no consecutive numbering for the full set. The chorales are NOT in order of BWV number nor ordered alphabetically across the collection; only ordered alphabetically within each CD. So, for example, each CD has a track 41, which is in alphabetical order only for that CD.
The PDF file of the texts is not a master list, since it just repeats the alphabetical order by title for each CD. It does, however, give two numbers for each title, a track number on each CD (but doesn't reference the CD number) and a consecutive number keyed to Breitkopft "389 Chorale", except that this consecutive numbering keeps starting over (not at 1, but as some seemingly arbitrary number) with each CD listing. As far as I can tell, the consecutive Breitkopft numbering is no help at all in locating a particular track or a particular CD. But maybe this is explained in the notes (if only there were notes), or maybe it is explained in Breitkopft "389 Chorale" (for all of you out there who happen to have a copy handy).
So you want to find "Jesu, der du meine Seele," what do you do? Either 1. Look through listing of tracks 1-50 (or so) on the back of each separate CD sleeve. 2. pull up the PDF file provided on CD-ROM (disc 7) and again look up the title alphabetically on each CD listed or do a PDF search for title or the BWV number [Except, beware of the BWV numbers used here. See item five below]. And even once you get to "Jesu, der du meine Seele" in the PDF file, you just know that it is number 41 on some CD. You then have to scroll up or down to the start of the nearest CD to figure out which CD it is track 41 on. 3. Create your own master lists (one in alphabetical order and one in BWV order) with your own numbering system showing both CD number and track number. By my standards, this roll-your-own approach is quite unacceptable with a set of 389 items.
Second, I rate this collection low because of my own unmet goals as listener. What I was hoping for was a recording of Bach's harmonized settings of the whole hymn that Bach used as a source or inspiration for the chorales that show up in his cantatas. I now realize that this was a completely misguided expectation for this collection. However, the product description did nothing to correct my mistaken expectation before I ordered it. So if what you want is Bach's take on six verses of "Jesu, der du meine Seele," that's not what you will find in this collection. None of these chorales runs over two minutes, and most run under one minute. There is no getting into a Bachian hymn groove with these chorales. Just be warned, like I wasn't.
Third, the CD-ROM gives the text of each chorale only in German, no translation.
Fourth, there are absolutely no notes with this collection, either printed or on the CD-ROM. Perhaps Nicol Matt found having 389 pieces laid down in no discernible order and with no master list as incomprehensible I do and gave up on the idea of providing any commentary for the collection. Who knows?
Fifth, comparing the "chorales" as listed on the back of the CD slip cases and on the CD-ROM with the Bachakademie edition of The Complete Cantatas of JS Bach by Helmuth Rilling, I find the following further curious and confusing aspects of this collection: 1) Some of these are the choruses from the cantatas, not the chorales from the cantatas. 2) The BWV numbers given are often just plain wrong. For example, the chorus "Wie schon leuchtet der Morgenstern" from the cantata of the same title is BWV 1. (And the chorale for that cantata is "Wie bin ich doch so herzlich froh," which is not in this collection at all.) But this collection lists "Wie schon leuchtet der Morgenstern" as BWV 36. And checking out BWV 36 in the Complete Cantatas, I find that it is instead "Schwingt freudig euch empor" with the chorus of the same title and having four chorales, three of which are in this collection and are correctly identified with BWV 36. However, "Wie schon leuchtet der Morgenstern" isn't a chorale in BWV 36. Of course, all of this might be clarified in the notes. Oh, right; there are no notes.