A customer collecting three quotes cannot judge the work. They can only judge the documents, which means the document is doing more selling than the price.
Most small operations know their total for the year and nothing about which work produced it. The difference between those two facts is usually a whole category of job.
A complaint lands in a queue, in front of a person with a script and limited authority. Knowing what that person can and cannot do changes how you write it.
Spring brings the largest volume of home improvement work and the largest volume of disputes about it. Several of the useful remedies cost nothing at all.
The three main sources of information about a school are each reliable for something and misleading for everything else. The trick is matching them to questions.