FLStudio for about 3 years, following 15+ years using Orion, and it's great. It's really stable, and on the rare occasion FLS does crash the project file is never damaged, unlike Orion in later years which crashed ...
FL (20) can't locate all the samples when I open the projects again. I remember one time on FL 11 where I changed the location of a sample and there was this error message telling that FLStudio couldn ...