Well it is nearly two months since its released and am I glad I did not jump right in there and buy one.
It would seem that its OS has about as many bugs as Windows 8 and despite years of development it has not been properly beta tested.
The Korg forum and specific 5X Fb Group is away with buyers who have found bug after bug and an OS that is not reliable.
There are also many features missing that the prior 4X model had, not to say that these will not be actioned in upcoming updates but it was three years after the 4X was released before the Next gen OS was released with the features that buyers wanted in v1 of the 5X.
I was not intending to buy one straight away, being cautious of Mark 1 versions it was my intention to wait until the OS is proved stable. Given Korg’s history of bug fixes, I am not holding my breath that they will be fixed soon.
So if anyone is interested in buying one please do your research and if you do buy one do have a cast iron return policy from the retailer.