I had a few bad years, because although I thought I understood the process, it needed some tweaking. However, I think it is now working well. I have a plastic 'Dalek' shaped bin and you have to remove the whole bin to get at the compost. I left it for two years, thinking all would be well, only to find it really wasn't. The compost had condensed into a solid mass and there were no worms to be seen. I emptied it out and started again, this time adding a layer of paper and egg boxes in between the kitchen scraps. I also started to turn the heap a couple of times over the year. Adding the paper layers and turning the compost have made the difference. The resulting compost is now lovely and soft, crumbly with an earthy smell.
It has been a real learning process but I am so happy with what nature and those clever worms have given me. The compost will be added to peat free multipurpose compost for planting and potting on and as a mulch around some plants.