What I won't miss:
We don't have hot water in our bathrooms. Most Americans here who do have it have what's affectionately called a widow maker shower head, but we never got any installed in our current house. I've taken a cold shower every day for the last year and a half, but it hasn't gotten any less shocking (though I have accustomed to the cold-water shave). Mix that with widely varying water pressure and you have anywhere from a dribble to a sandblasting stream of surprisingly icy water.
Of course, the very fact that I complain about this ignores the tremendous financial advantage I have over the majority of the country which doesn't have large water tanks to draw from when the public water is off (about 18 hours a day) or a water pump to supplement low water pressure. Something profound could probably be said at this juncture, but it eludes me.
What I'll miss:
This view from the shower window. Even though all the blooms just fell off of that middle tree in the last few weeks, it's still hard to beat.