Unfortunately I have only heard Linn in an evaluation mode. I had a Linn Select streamer / DAC (the middle priced version… three levels are available). I was comparing it to my Aurrender W20SE / Audio Research CD 9SE DAC. So $40K vs $12K. While it did not sound better than my Streamer / DAC… it sounded very good for the money… I have had a variety of streamers and DACs in my system.
I have also heard the Klimax quite a bit… although not in my system.
From these experiences I can definitely recommend Linn. Of course if I was buying I would be doing more auditioning. I know someone that carries both and seems to prefer the Linn.