I don't think it's fair to talk about "shortcomings" and "getting it right": it's a different approach and we must agree that personal preference will diverge.
Personally, I tend to use action-selection for small changes (1 to 3 objects), and selection-action for larger ones (as my brain, I've learned, becomes slower at counting above 3). So "delete 2 words" will be "2dw", but to delete the next 5 words I'll reach out for "v".
Personally, I tend to use action-selection for small changes (1 to 3 objects), and selection-action for larger ones (as my brain, I've learned, becomes slower at counting above 3). So "delete 2 words" will be "2dw", but to delete the next 5 words I'll reach out for "v".