I just wanted to update this thread. I received my preamp about a week after ordering it. Working with Arek was a pleasure. It is extremely well constructed and solid. When you factor in the quality build and the flight case it ships in, you can understand he’s not getting rich at this.
It is very transparent as you might expect, but dynamic as hell too. Just gets out of the way and let’s your amp do it’s thing, which is exactly what I wanted. Highly recommended.