Survey for Diamantaires regarding Schengen Visum applications

This survey wishes to probe after the personal experiences of Antwerp diamantaires regarding a Schengen Visum issued by the Belgian government. This survey therefore focuses on incoming Visa, issued to foreign/non-EU citizens travelling to Belgium. The survey does not concern Visa issued by foreign diplomatic missions in Brussels to Belgian citizens travelling abroad. 

Question Title

* 1. Do you have experience with applying for a Schengen visum to Belgium, either for yourself or on behalf of an employee, a client or a family member?