I have had to play with the ads on Facebook to finally get one that draws people in. I'll post some pictures of my latest one it's been running for 2 days and so far I have had a lot of interest but no calls. It seems like there is a lag between when they comment and when they call to schedule and it's usually around a week.
A good Facebook ad is key to getting real clients. I see so many smaller companies try it on their own with no professional help; usually the ad has no copy material, is using just their logo or an ugly photo they took or found online, and always resulting in lots of money spent with little to no results.