Here take a look,
1. What is your product profit Margin? If you run Ads, then you get leads/conversions. Also, make sure what is your return RTO%.
2. Populating over FB groups or other social media, merely the impression count will come, then make a stats for your clicks and conversions...
It was amazing and it works well for me too. But it's not the translated content I've tried, made on alternative language and received a warm welcome. Gives a greatest potential than I've ever thought.
Success to your journey too!
It really depends on the experimentation mate. Cannot blindly judge parameters on a blank note, attributes of keyword research, competition, ratings, even the website landing & customer review, and experience matters a lot sometimes.
Also, FB is impulse-based conversion whereas Google Shopping...