Actually Delphi is still a very quick and enjoyable IDE for Windows and with some limits to other platforms too. Compared to C/C++ compilation times it's way better.
Bottlenecks are hard to use external C libraries and the price, there's no way I pay about 1000 Euros every year for quality fixes and maybe one improved feature that's is useful for me.
Lazarus is the free way, has some flaws, but actually usable on any platforms and OK for real world use, though I only made smaller projects on that.