Nanukhardcases review for Fomo: Social Proof Sales Popup

I've had Fomo installed for more than a year now. I still can't confirm that it's a must have or not. I feel like a victim of the FOMO if I'm not using FOMO. So I keep it installed. If I look at the stats I get on the Fomo Dashboard: 200 000 views - 3 sales from those views. Not really efficient at converting people into customers. But I know that I can use Fomo in sync with Shoelace and retarget visitors on Facebook. I think it's the only reason I keep it.