I think it’s one of the more underrated or at least underappreciated of Hitchcock’s 1930s films.
This comment may contain SPOILERS for those who’ve not seen it yet:
I thought the blackface sequence at the end added a lot of suspense since we saw the actress’ husband in the opening scene twitch his eyes.
Spoiler alert! Spoiler alert!
Yes, it was a clever way to extend the suspense.
I bet the girl was considered to be beyond modern - cranking her own car and running off with a man and staying out overnight!
And, her first-aid procedures - amusing.