For anyone with an iPhone 5S (or older) who has been holding out on an upgrade in the hopes of a new top-tier “small” iPhone, the iPhone SE is cause for celebration. If you are such a person, run, don’t walk, to buy one. You will be delighted.
If you’ve already upgraded to an iPhone 6 or 6S and have made peace with the trade-offs of a larger, heavier, less-grippy-because-of-the-round-edges form factor, the appeal is less clear. Me, I talk the talk about preferring the smaller form factor, but ultimately I’m a sucker for top-of-the-line CPU/GPU performance and camera quality.
If I knew that there would be top of the line updates to this sized phone each year, I think I’d go back to the smaller size, but without knowing for sure, it’s too hard to make that call.