I use Like4Like for my social media boosting and so far, it has delivered me thousands of interactions and a SERP positive rank...
P.S. The website refunds the credits lost by bad users and reply to my email within 12-24h...
Tip for consumers: Be aware that FB Page Likes are removed by Facebook no mather the way you get them (organic or boosted way)... But FB Post, FB Photo, FB Gallery, and all other FB likes are not removed...
It is similar on most social networks, so... To get the most out of your effort or money, read the instruction on the website, before you use it...