I used the service to promote a post. The quality of the accounts turned out to be mixed: there were both real active profiles and bots, which was a bit disappointing. Otherwise, I was satisfied with the task execution. The price of 0.36 kopecks per like is quite acceptable. I haven't tested the service's offerings on other social networks, but, for example, using promotion for a group on VKontakte can be risky due to the possibility of a ban from bots. Overall, if you need to promote a post in search, I can recommend this service. However, as with any other promotion methods, you need to be careful and sensible in your usage.