I assume you mean Delphi. Other than being now a little bit old school (not surprising for language with roots in Pascal), Delphi was and is an excellent language. Delphi was composed of a language (an ObjectPascal) along with the IDE, application framework, and Visual Component Library (VCL). These conceptual parts were all further developed in C#/Visual Studio, but they were already damn good in Delphi over 20 years ago, ahead of their time.