First impressions:

- much Russian text in the system even when you use English
- could not make it work
- The Wordpress plugin is two years old, the manual install did not work for me
- you must download and install the js files on your system which is strange and works only with traditional web-hosting (other push services give you an insert-to-website code you can use at other SaaS products with custom scripts capability)

Sorry guys, I gave up quickly with your system. It's not for me.