One could argue that scaling well, because that it started off being pretty terrible without the "right" system. It is very simple to hear the improvements if the gaps are huge but the end result might well be nearly the same as the other one that didn't scale that well, because it started off sounding pretty nice from a less compatible system.
If it sounds good from a lesser system, normally just means you are closer to the ideal end result before you started building for it.
It can mean a lot of things. Maybe it was also closer to its limits at the beginning. Regardless, something else might be a good deal better if one knows what one's doing and isn't shiftless.
Edited by Claritas - 1/29/14 at 10:37pm