It's very hard to find workout from past and edit mistake in typing in number of reps and weights. On some excercises I can't reach personal bests anymore because I would have to scroll 4 years in past to find and edit workout. Simple scroll through the dates would be amazing and then posibility to select a date when workout happened.
Also your app gives badges even if I accidentaly type that I ran 850 kilometers, and then change it. The badge stays forever and one cannot reach personal best anymore