speak well for

speak well for

1. To show support or vouch for someone. I can speak well for Ted, I've known him for years.
2. To act as proof of something. I think she would make a great model—her grace and poise speak well for her.
See also: speak, well
Farlex Dictionary of Idioms.

it speaks well for

something places someone or something in a favourable light.
See also: speak, well
Farlex Partner Idioms Dictionary
See also:
  • it speaks well for
  • do (something) by the book
  • do something by the book
  • stake (one's) reputation on (someone or something)
  • stake reputation on
  • How about you?
  • take on trust
  • take (something) on trust
  • take at face value
  • take somebody/something at face value