The case "get similar results" actually does not happen with Extension Developments. It's like we have to redesign and rebuild something we can touch right before our eyes, just because our end client's requirement is just to add "Company Logo" to a Standard Report. (PS: Reports do not support Extension Developments yet though)
So, the "Actual Development" does not talk to Business Central at this stage and either we have to move for previous and precious NAV or suggest our clients to go for another ERP solution, sadly but practically.