In issue #169 of Hi-Fi+ there is a superb LUMIN X1 review.
During the review Alan Sircom states:
To say I'm impressed by the LUMIN X1 is something of an understatement. I am blown away by its performance.
It has a sense of absolute confidence in it's own performance that is typically the domain of the best in analogue
It puts it in direct competition with products that cost several times as much and take up a lot of shelf space in the process.