Coach cues, front and centre
The cues you write on each exercise — form, tempo, common mistakes — are the value-add. They used to render as a tiny grey line under the exercise name. Now they sit in a clear "Coach cues" callout, full-size text, with the line breaks you typed.
Per-set notes show up too, italicised next to the set number, for the moments where one set differs from the others.
Small thing. Big change in how the program feels on the client side.