Thing is: If slicing is in next update +advertised features in a soild stabel bug free firmware , it pushes this thing into top#1 close to greatness…
If a year between updates experience is the expectancy and the next OS is… whoops … some bugs still , causing you to sweat live and lose work in life …and the forthcoming slice is comming in next OS or the one after (slices in late 25🤔) is why its concerning now …
But man NI just released Stems for their DJ tractor, and a new M+ update is about to drop / a not so wild guess is that it will support Reaktor instruments with GUI 
…
Reaktor has remix sample slicers😍 and endless sources of synths, effects and DSPs and of great quality… so yhea Polyend are not free zoning here…heck the 707 even with its dates layering process /editing is just a massive playground with endless sonic adventures, this is waht makes committing to something that seams to need stability and improved arrangement speed hard to do.
That being said, the OG tracker can be had for bargain prices now … I am so tempted… if the UI as noted in XOX Grid thread was addressed … Id just pick up a tracker and commit to it …its just such a complete thing in its own right