I will be reviewing books, software and equipment and I will use the following, land surveying related, rating system I've created:
1 ROD = Not recommended.
2 RODS = Recommended with reservations.
3 RODS = Recommended.
4 RODS = Highly recommended.
For those unfamiliar with land surveying, rods are a unit of measurement from ancient times still used today in old deeds, surveys and government land grants.
1 Rod equals 16.5 feet and 4 rods equal 66 feet, or 1 chain.
Click on this link, Wikipedia-definition of Rod Length, for more information about rods and chains used for land surveying measurements.