We used Home Advisor for about 5 months. In that 5 months I ended up paying for bogus leads, leads that were completely unrelated to a Home Theater business. I had to pay for leads that were sent to 2 other companies, so generally to win the job you have to have the Lowest price for that client, but you ALSO have to eat the lead fee. We turned off 95% of the service leads because some leads were costing $40+ for jobs that were only an hour of labor.
They base the fee's depending what they think the job will pay out, which is completely bogus considering no job is ever the same.
On top of that some clients would call just to get info for a DIY project, using HA as a go to place to get info to do the job themselves. (Thanks for using HomeAdvisor- you just cost us $32.19 to tell you how to do something yourself)
They would credit you for a couple of bogus leads each month, but it got to the point we would turn our services on a week a month due to the fees. Once GMB and other backlinks were in place we cut HA off all together.
I guess HA would be good for a month or so JUST to get your business started, but I can easily see this service bankrupting many businesses that are trying to get on their feet.