I designed our tiny kitchen. I am really really pleased with it, it works perfectly.
Things I love - dishwasher close to sink, plate rack or cupboard over dishwasher. Saves precious moments in the morning.
Pull out cupboards with pull out drawers in them. Ikea styleee. Amazing what fits in those.
Extra tall cupboards. Might need to stand on a chair to reach the top, but a box of party plates isn't used often anyway.
Do what suits you. Joiner sucked his teeth at me wanting the worktop taller than standard, but I'm tall and I don't like backache. So all the floor cupboards are raised and I love it.
We have 2 sockets - one for toaster in morning, one for blender etc when use. Any more would lead to precious worktop space being used for mobile phones etc. Ours is too small for all that stuff.
We use a kettle on the hob because I like the whistle.
The only fault it is longer that the longest plinth and trim, so there are joins in those. It only cost £1500 so can't complain really.
Second the need for manic attention to detail. Be sure to specify and check everything. We have a plate rack with shelves next to it. The shelves don't line up with the plate rack. That will have to be changed. At some point.