This is something I really have wanted from a lifting app.

One thing I don't think is here, but would really love: be able to describe a workout I did today with my trainer so I can replicate it perfectly in 3 days at the gym by myself:

"bench press, drop sets, with a 30 second hold before each set, starting at 100lb and decreasing 10lb each set, reps starting at 20 and dropping to 16, 14, 12, and 10 for a total of 5 sets" either thru voice (preferably) or text and have the app build the workout.

Manually building these things really sucks in most apps, even if there's a good UI. My trainer has about 8 variations and combinations of these we might do on any particular day and they're always evolving and changing and I don't really have time to capture it in the moment.