Comparison of DNA sequencing services

This page lists the different DNA sequencing services. 
2 main types can be distinguished:
Whole exome sequencing is the middle ground between these two types, where a large amount of genes are sequenced, but only those that produce meaningful differences important for practical purposes, which is only 1% of the whole genome.
Both allow people to detect the presence of hereditary diseases (and/or other imperfections) in their DNA, and (when WGS) is used, it even allows people to know the specifics of their hereditary diseases (and/or other imperfections). These specifics can be important, as in many cases, it's not a single gene that causes the disease, but rather a combination of genes. In some cases, the exact gene is not even known, but only the approximate location where the imperfect nucleotides are situated is known.