DIY kitchens have a great online kitchen planner. Even if you are getting yours designed elsewhere, it's worth a look.
I had 3 designs done and they all looked the same, they just asked what I wanted and stuck some units in. No new ideas at all. With the planner I was able to see the different options available for every space.
EG I don't have a built in microwave but a cupboard with a space for an eye level one (with chopping board space at the side). I wouldn't recommend eye level if you have younger children but I love it.
Echo what others have said about drawers, so much more useable than cupboards. I only have one wall unit and it is directly above the dishwasher (by design) for ease of putting stuff away. The door cantilevers upwards which is absolutely fab as I was forever banging my head on top cupboard doors before. One thing I would add is a second dishwasher. It sounds like it is a space waster but is great. Alternating one is clean and one is dirty, so actually provides storage and only occasional use stuff has to be moved anywhere else.
Absolutely love my induction hob. I've used a few and some are definitely better than others. Because I live alone and have a smallish kitchen I have opted for a couple of single plug in units so can be totally cleared off the kitchen side if I want.
For those that have cupboards and are struggling with access to the back, you can get retro fit pull out wire drawers (like these from Amazon.)
Love my integrated pull out bins, including recycling ones.
I've gone for matt finish handleless doors, easier to wipe marks off a flat surface rather than cleaning handles to me AND nowhere to bang my hips. (Yes I'm accident prone and my kitchen is small). They also give a clean uncluttered look to my kitchen (or a neutral backdrop to my kitchen clutter)
Worktops - I've gone for laminate. Spare cash went on more useful things. I haven't got a water boiling tap but I love the pull out extension; it's useful for so much.