I upgraded to a 128GB SE from a 64GB 5s a few weeks ago and I love it. The 5s works well enough, but I couldn't pass up the increased storage and Apple Pay on the SE. I'll be keeping the 5s as a backup. I tried one of the bigger iPhones for several months but concluded I just love small phones and I went back.
I think the design is classic. When I compare it to my friends' newer iPhones, I think the SE looks so much better and timeless. But I agree that it's too small to consume content for longer periods of time. If other SE owners are like me though, they prefer switching to an iPad for longer consumption anyway. To me a phone is just for quick tasks or audio.