Hi Radicchio,
We (me, dh, 16yo) moved from a 3 story older home with a difficult layout and terraced gardens to a single level ranch house.
I find our new house infinitely easier to maintain. The yard is mostly level and I'm looking forward to landscaping.
The house isn't new but is in much better shape than our previous house. The layout is darn near perfect, with the bedrooms separated from public spaces.
The location is great, I really don't need a car (though I have one.) The exercise from going up and down stairs is more than compensated by walking everywhere.
We got rid of loads of stuff during the move and I'm still tossing lots of stuff as I unpack.
Moving was an incredible amount of work. We were really motivated to live in our new town - really, it's a whole new life for us. As we moved to a much less expensive area this was an enormous financial gain. I also found a great job (though I officially 'retired' when we moved and am getting my pension as well as salary.) There is also a very good high school for my daughter, and a state university a couple blocks away.
I guess what I'm saying is that it wouldn't have been worth the work and hassle just to downsize, but the other factors made it very worthwhile.
Good luck!