Attention to detail can never be overlooked. These screws around the window frames of the railway carriage I was on last weekend in Wales were all aligned pretty much perfectly.
I know that great should never be the enemy of good in product, but kudos to the craftsman who took the time and attention to do this, and had pride in his work.
Investing time in eliciting the details for a new system will always be worth it as the details that come out can be the make or break of a successful system.