After a working career using Aerads, I now use Jeppesens. I'm appalled- I think they're awful. Primitive, old fashioned presentation, lack of colour, difficult to read contours, thin weak paper like old fashioned toilet paper, poor display of information (I've noticed state speed controls seem to be often omitted). I think people only use them because they don't know the alternatives. Long live Aerad! What are Lidos?