Agilent kept the "high-tech" part of the original HP "technology vision". HP kept the name and hared off into every possible computer tech wild goose chase imaginable under Carly Fiorello. HP product quality plummeted, Agilent's remained true to the original HP product quality ideas.
Agilent is making some nice stuff. I’ve got one of their Function Generators and it’s a breeze to use, as opposed to the old HP 8116A with it’s indecipherable controls.