The drawbacks can be summed up as typical for a promotion service: lack of guarantees; if the page gets blocked, there's no point in looking for someone to blame, there will be no compensation; weak audience targeting. There are more positive aspects. The service is good at least because it is versatile and suitable for promoting major social networks in the Russian internet - VK, OK, Instagram, YouTube, and Facebook. I don't consider Telegram, as not many people promote there. The variety of promotion options is good, with all the main actions available. For VK, you can get followers and friends separately, likes, reposts, comments, views on posts and videos separately, and polls. For YouTube - likes, dislikes, views, subscribers, reposts. And so on in a similar manner.
