They sell each lead to 5-10 contractors! The chances for you to get a job from these leads are very small. Most customers get so many calls, they stop answering or just don't want to do business with Home Advisor because of that.
I just spent money with them, and got very little back. Most leads are bogus or not correct, the rest will make you give estimates when you compete with unlicensed contractors with no overhead. Your chances of getting the job are very slim.
Notice how all the good reviews on SiteJabber for HomeAdvisor are from customers who hired contractors on HomeAdvisor, not from contractors who use their platform. These reviews are about the contractors they hired, not even about HomeAdvisor.
This is what they do, they're trying to manipulate their bad reputation.
Stay away! Find another way to get leads.