Yes they are good and I have used their inputs and lending on several occasions. But they don’t know all equipment and anyone who is into high end and listens carefully knows that on some occasions components & cables don’t play well together. That has been my experience and a few times I have selected an alternate to their top recommendation.
They recommend and lend anything they have so you can try and compare at home in your audio setup and then buy or not buy at all…. So what’s the issue?