I am greatly enjoying my iPhone time right now. It's gotten way better after adjusting a bit from my 6P. Some of my gripes are the same as Spork: Slow scrolling, poor sharing, no default apps, switching apps is not as fast.
I got my 7+ in yesterday but have shelved it for the SE. The SE is really awesome. It's super tiny and makes me remember why I miss small phones. No, the screen itself isn't why. It's mostly the feel of the device. The entire thing is engulfed by my one hand. It fits in pockets so easily, in the sense you don't even know it's there. I only wish it had my 7's home button and 3D touch. Otherwise, love it and prefer it. It's making me reconsider getting an XL model of my next phone, be it Pixel or iPhone.
Also, the iPhone SE just feels so good. The design is outstanding and superior to the 7 or literally every other phone ever made. Except the iPhone 4/4S. That was special.