I've played the one Arni is giving away, it was on display at a meeting of a Dutch bass guitarists forum where Adrian Maruszczyk had a display (along with several Dutch luthiers and amp builders and 'that other Polish company', Mayones) before it was given to Arni. I didn't like it... The neck had a good shape, but overall the bass felt very cheap and sounded overly bright to my ears. To make things worse it was set up way too low. Not my cup of tea.
It can be seen in this picture of the Maruszczyk-stand:
