I agree in part with the other reviews. I own this recording. It is lovely, lively -- a very musical performance and I have really enjoyed it. The piano in this recording has a gorgeous sound. However, I cannot buy into the methodology and have formed similar impressions with respect to the Bach performances of Andras Schiff, another terrific pianist.
I believe the music of JS Bach fits the piano. However, the piano possesses volume and sustain that does not compare to the sound of the baroque keyboard instruments. In my opinion, the ornamentation and improvisation succeed when playing the harpsichord but there is a fundamental difference between the two instruments and, research as much as you like, you lose rather than gain authenticity. The trills, turns and arpeggios extend the life of the notes on an instrument like the harpsichord whose sound decays quickly and that fact created a technique. On the piano less is more. More is a distraction. Bach's music has a built-in pulse, momentum and drama, and often reflects his deep religious conviction. That is not to say the music is without humor, but I believe what you do must be meaningful. While Mr. Biegel's interpretations may be metronomically correct, the pulse takes a back seat to ornamentation. In my opinion, the music is not served by it. I have played a period harpsichord and discovered remarkable color and sustain through sympathetic tones -- the instrument was strung very densely. Careful pedaling on the piano creates a more authentic sound than the addition of extended ornaments.
I would also point out that the harpsichord is not the only keyboard instrument Bach wrote for and the e minor Toccata, for example, is reminiscent of an organ work. And to nitpick, but also present a paradox, I am currently preparing the Toccata to perform, and note that Mr. Biegel plays through many of the rests, especially in the final fugue, however, maybe Bach didn't originally put all those rests in anyway.
So having set forth an opposing point of view, please feel free to enjoy this recording! It is beautiful music played beautifully. There will always be "artistic" differences!