The upsides
The location, fabulous street full of families and things for children to do (we have Europe's highest concentration of under 4s here) with loads of great shops (I have SpaceNK, Waitrose, Jigsaw, Kiehls, and coming soon, Jamie Oliver in my road along with countless family friendly restaurants and bars) plus two massive parks less than 200 yards from the house.
Lots of natural light, south West facing living room so we always have lovely sunsets and masses of daylight.
The Decor, it's taken lots of work but I've finally got it looking how I want.
The room sizes, pretty good all in all, good solid Victorian proportions.
The proximity to work/central London/family/the greatest living childminder on earth.
The roof garden, precious outside space, a little urban oasis (when I take care of it properly)
The downsides:
It's a flat
It's too small, no spare room, tiny kitchen, one reception room.
The stairs, two flights to our front door, no lift.
The parking, typical London residents parking permit scheme, ie you pay to park miles from your own front door.