Ooh kitchens!! Mega long post because we just got our kitchen 6 months ago! It was a very stressful process but now I love it and I hope you will love yours too OP!
Yy pan drawers are amazing!
Look in your kitchen to see what stuff and food you actually have and make sure your plan includes how much space you need for it all and where you want to store it. Sounds obvious but it's easy to get sidetracked with all the amazing options in the showroom...
Also pull out spice/oil/sauce rack cupboard thing, clears all condiments off worktops, bliss. Ours is right next to cooker and so handy.
Pull out basket things for food storage makes life so much easier, cans laid down flat with labels facing upwards so you can see exactly what's what. Also potatoes and onions etc can breathe.
We decided no wall cupboards to keep the space open, though may have to add a couple of shelves eventually for additional storage.
I love the integrated dishwasher and washing machine, a fancy way of saying they have matching panels on the front, just looks so neat.
Don't get floor tiles, they are freezing!!! (Unless you can afford underfloor heating which is heaven for feet) changed my mind at last minute and have lino for now, not ideal but I couldn't bear the cold tiles under foot and they were so cold they were actually causing a draught in the dining room.
Yy to getting a nice big sink if you do a lot of cooking from scratch to tackle pots and pans. A swan neck type tap is best as reaches up and over to give max space in the bowl.
If you go for a composite sink always run the cold tap when draining pasta etc. We found out the hard way they can crack under boiling water if we had known then wouldn't have done it!!! It's covered under warranty but still waiting for it to be replaced. I do love the sink though it is a pleasure to use.
Plan which tasks you want to do where and get sockets put in accordingly. We chose to put them in quite high above the worktop rather than low, so much easier to reach up and switch things on or off or plug them in etc. No fannying about behind the appliances. The electrician asked me about 3 times if I was sure, I think it must be unusual but honestly makes life so much easier if you use a variety of small appliances regularly that you plug and un plug when not in use. Probably they are about 30 to 40cm above the worktop.