I’ve been with S1 since close to their beginning. Excellent, intuitive, reliable DAW that keeps getting better with each update. Sure it doesn’t have all the bells and whistles of the mature programs but that’s ok – early days. Useful features keep getting added and I’ll be happy if they continue to avoid bloat as I prefer to buy instruments and effects for myself rather than waste space on included elements that I’ll never use.
Only other DAW that interests me is the upcoming Bitwig Studio as they’ll have Kore like features such as VST nesting, modular synth setup down the track, and the Ableton Live matrix for clip arranging.