The color output is certainly different, you are unable to get "navy blue" - something like pantone 208 on hc65, magentas are "problem" as well. It does though produce very vibrant colors, almost fosforescent yellow etc.
The machine otherwise preforms pretty much the same as 5601 and is not very picky on substrates, however we had poor results on it due to constant servicing needs. Before taking a decision, check the servicing - without knowleadgeable and responsible maintainance it can be more of a "stander", since it is pretty demanding, at least for us it was.