I ashamed to state I've done the full Goldilocks routine with the 12 series. Started out with the 12 Pro, but felt it was a bit too big. Went to the Mini and the size was perfect. I was all set to keep it except for three issues. First, I was making too many typing errors, particularly with non-auto correct things like passwords and surnames (people with more nimble fingers and/or better eyesight would do better....) Second, battery life was significantly worse than the 12 Pro. Third (and this also may be unique to me) I noticed degraded wifi speeds with the Mini vs. the Pro. I typically get 500 Mbps at the router and was getting around 425-450 Mbps with the Pro sitting in my favorite living room chair. With the Mini I was getting 350-375 Mbps. I ended up selling the Mini and went back to the Pro and am getting the higher speeds again and feel it's a better fit for me. Maybe the Mini has a smaller wifi antenna which results in slower speeds? No idea.... Half way between the Mini and Pro would probably be a perfect size for me. I'm sure Apple is listening!