I have to say that this recording is very weird.
Although the final duet is languorous and each note is completely lingered upon, it is a little too extreme.
In my opinion the beautiful counterpoint is completely obliterated by seemingly unrhythmical performance and vital harmonic events, such as dissonances and their respective resolutions are ruined.
The text however is well delivered but sadly to the detriment of the text.
I can't help but feel also that the orchestra, in particular the continuo playing, is reminiscent of a pop song. For example, the first two dissonances in this aria in particular are entirely modern and not in keeping with the Baroque idiom at all.
All in all, a little disappointing. The final passionate duet of the piece is hardly a highlight.
I would recommend Auger and Jones' version of this work. In particular, Auger's voice seems incapable of mistakes and is completely unfaltering. Jones' supports this well by matching her delicateness and the pair shape their voices into one flawless line.
Please listen to the Auger/ Jones recording at least once! It's phenomenal.