It's all inside baseball but I know a fair number of people in the industry (at Blue Origin, SpaceX, and JPL) and every single one of them speaks extremely highly of her engineering and organizational leadership acumen. The people I know at Blue still (I was actually talking to one of them about this a few days ago) lament that Bezos was unable to poach her from SpaceX, and he tried very hard.
A direct, verbatim quote from one of my friends at SpaceX (chief engineer level, though technically SpaceX doesn't have that title) that I've referenced here multiple times is "She's the only person alive that can tell Elon no to his face and that he can't fire." She's probably his biggest hiring win, ever, SpaceX likely wouldn't be what it is today without her, and that's the last time you'll ever hear me sing the praises of a C-suiter.
That said, there are some recent rumblings that the relationship has become strained due to Elon's increased insanity and certain corners they are being forced to cut in the design and testing stages (I don't have any details for that, sorry).