Yes! The most useful things on the earth.
DP came across he Hafele make when they had their kitchen fitted by an independent fitter and I've subsequently bought their baskets for my last two kitchens. No idea how prices compare but they are very sturdy, hold a lot of weight and run smoothly. I am told they often supply to kitchen manufacturers.
Have as many as you can fit in, but consider what you want to put in them to decide the height of the space between each as they can be fitted at whatever intervals you want. I could for four in one cupboard, for example, but having some taller boxes, have chosen only to have three.