Well, I would have liked a smaller body size, but the rumors leading up to this already had me prepared for what it was, and I'm honestly OK with that. After my iPhone 5S (I think that was the model), I lived fairly happily with my iPhone 6 and then a 6S, before getting an XS, deciding it was too big/heavy (and I didn't like FaceID), and buying an SE. Since owning the SE, though, while i love the size, I don't like the following:
1) Horrible battery life (not sure if this is something recent because of an OS update or what, but it's really, really awful, and the Settings report that it's in perfectly healthy shape.
2) The camera. After being spoiled with the XS camera, the SE's camera was definitely a downgrade. This new SE won't be as good as the XS or 11 in terms of number of lenses, but they're touting it as "the best iPhone camera" so that's awesome to hear.
3) App support. Too many lazy developers have treated the SE screen size/resolution as a 2nd-class citizen, resulting in some apps not quite working perfectly.
I'm actually glad that ordering is delayed, as it gives me some extra time to mull over which storage size I should order.