I sold my 64GB SE a few months ago and picked up a Huawei P10, I now really regret that decision as this phone is pretty buggy and has a few quirks i don't like.
Sooooo thinking about picking up another SE today but as they now don't sell the 64GB anymore will 32GB be enough.
I think 32 GB is enough for my needs. But it depends on your usage with applications, media, photos/videos, etc. I don’t have a lot of applications and media stored. I still think 32 GB sufficient if somebody is conservative.