Facebook is important for your business , facebook ads is best way.

It's depends on the niche. Some niches have a bigger market running Facebook ad than Google AdWords, and vice versa.

Should you do more with the Facebook business page you have? ... Lower Your Marketing Expenses ... This is carry over from #3 -- and it's super important. ... How many page Likes I have; The Reach of my posts & page (take a look at that ...

Facebook has a large user base. It is a great platform to promote your business. It also give traffic to website.

With the use of Instagram insight data you can understand how you can improve your profile. This also helps to increase the reach of your posts.

Facebook Marketing
 

I believe it should depend on your customers. If your customers use Facebook for your service then your good to go for Fb marketing. If I take my case I get leads from LinkedIn so I use LinkedIn way too much frequently. I always post at least 2-3 posts daily and try to increase my connections by 10 daily. I hope I answer your query.

It will depend how much you will spend for ads.