I was happy with the service for a year since I have been receiving some clients from them. They have good SEO which I think is their greatest advantage but their system is really unstable. They keep on changing their protocols and subscription fee. Recently I was charged with 4x my usual monthly premium because they said that they have upgraded their fee. And they did it without my consent! I never wanted to upgrade because the fee is simply very expensive. Now, I am trying to get a refund but they are refusing. The cancellation process is also very long, will ask you so many questions. If they are not scammers, it feels like the management of their business is very poor. The business has a potential but I think they are more focused on getting profits.