Delphi had a powerful and easy to use GUI editor in the early 2000s, much less of a hassle compared to building software with Windows' own C++ API.
I went the same path and it was a bit of a shock when I found out i have to fire up Visual C++ to do a custom VB button.
It took all these years to have what should be in the box on .NET 1.0 instead of NGEN.