Do you think that Facebook reviews are as important as Yelp or Google reviews?

Almost ALL of the credible review sites are important.
Yelp, Google My Business/Google and Facebook are probably the top three, but don’t stop there! If there are niche review directories (like Angie’s List or Cars.com), ask customers to leave reviews there, too. Mix it up. You want a good balance of reviews on a variety of the top review sites.