The PA2XPRO had very few issues with LED's. One shipment of bad boards caused it. They replaced everyone they knew about. Some contry's do privide better support at the distributor level so some folks were dissapointed in the response, but most country's got right on it. Korg US did a good job. My nly real cririsism is some folks had to wait far to long for parts from Korg.
My PA2XPRO has been perfect, with no HW issues at all.
It did take them too long to discover the root cause of the issues that did arise on the LED's, but then they took care of it. I'm not defending them, but it could happen (and does( to any MFG.