Coming from mysql-front I have to say that I am amazed to what I have seen in HeidiSQL
One feature I would like to see , and was using in mysql-front is the http tunneling.
When choosing to connect at this way the program would provide a php based proxy file stored to a chosen path and exposing local mysql to the program.
The proxy is user agnostic and the program still had to be provided the appropriate credentials to be able to login local.
This way you can login to a remote server without the need to grand access to your host ( most help full for developers who don't have a static ip like my self)
This way was not design for heavy usage and to operate large dumps, and was bounded to php limits, but in any case provided access to a restricted in other ways access to mysql.