Reading all of these only reinforces my thoughts that I will never build with a cookie cutter volume builder.
I'll be getting it designed myself (with an architect or building designer) and built by a "Bob The Builder" type. Someone who's own personal name is on the business and who's personal reputation is at stake.
In my years in the building industry I have generally found small contractors with their name on the business name have a higher likelihood of being trustworthy and honest, and doing a good job. They're generally not in business to take over the world, they just want to make a living and do a good job. Might seem a bit silly or old fashioned, but I have acres of respect for tradespeople who treat their trade as a craft. They're not just part of a box factory production line.