Ours wasn't as dismal (the zero sales part), but in order to get a sale we had to spend ~5 times as much on Facebook ads vs. Google ads. The bounce rate alone

Ours wasn't as dismal (the zero sales part), but in order to get a sale we had to spend ~5 times as much on Facebook ads vs. Google ads. The bounce rate alone from Facebook ads was just under 3x that of Google ads - around 90%. I'm assuming a lot of Facebook ad clicks are accidental.