We have been using this service for a long time, and it is really great, with good technical support and many features. However, many of the services are not fully developed. The bidder takes a long time to get information from Yandex and seems to work on an unclear algorithm or very inefficiently. We decided to purchase the bidder separately. The idea with the email is wonderful, but the constructor itself is very simple and inconvenient; if the functionality is so limited, it would be great to add the ability to insert your own HTML templates, and this applies to many additional modules.