The recording lasts a little under three and a half hours and is read by the author, which suits a book of this kind. Instructions land better in the voice that wrote them, and the brevity is a courtesy: this is a listen for one afternoon, ideally spent within reach of the windowsill in question.
It is a recent addition, so listener verdicts have not yet accumulated and there is no consensus to lean on. Expect the fundamentals of light, soil and cutting rather than horticultural theory. The entry is a short scroll below.