The biggest issue for me is the battery. The first mini had horrible battery life, I know the 13 is better. The fact is I'm spoiled rotten with the Pro battery life and don't see the size winning me over.
Same—I just bought a new iPhone…I thought the mini was right for me, but after three days of using it, it was clear that the battery life was worse than my years-old Pro. So I returned it and got the Pro instead.
The other challenge was that I found it hard to go back to the smaller onscreen keyboard and display. I think I was deluded about my vision being as good as it was 10 years ago!
Try swipe typing, it really helps make small screens a lot more comfortable for me. I have one tiny Android phone with 2.5" display and it actually makes that one usable.