I have pull-out corner shelves and I find them a bit rubbish tbh. I'm sure it's because our kitchen is a cheap one (in when we bought the house and we can't afford to re-do) but it can't take much weight. Tall things are unstable, fall off, and easily get wedged underneath. These are plastic shelves, so steer well clear of those.
I would love deep pan drawers. My mum has these and they are great. Lots of my friends have pull out larders and they are great. You can store so much on them and still see what you have, so nothing gets stuck at the back of he cupboard.
I also want somewhere cold, dry and dark to store my veg.