few things coming from a first gen SE
-it feels nice in the hand, a little heavier tho i will get use to it
-have to open control center to see battery %, not a huge deal but rather see the number than the icon.
-its danm fast. wow.
-oled is nice.
-having the whole front of the device be screen is really nice.
i can only reach about 60% of the screen with my thumb with one hand operation, vs about 90% of my SE...if i do end up needed to use 2 hands for a lot of functions, i might have to reconsider one of the larger phones but so far im very pleased with the performance, im going to miss the SE.