She surprised us when she left the company so suddenly, especially 'considering' (that) she had worked here for 20 years.
He didn't win, but he did very well, 'considering'. [=he did well when you consider the situation or circumstances]
He did very well in the campaign, especially 'considering' his lack of experience.
(..) Mr. Kramer, we're really not allowed to use the cars to run errands. Now, look, Rick, I'm very close to giving this car... ...that my celebrity friend is considering, my full endorsement. Well, let's see if I can get a smile from these femininas. Hey, ladies. It's a Saab . What do you think? (..)1998 TvShow: Seinfeld Title: The Dealership Season: 9 Episode 11