I just bought one RyśMKII from vesalia.de and I must say that I was pretty surprised that all other resellers listed on the site require a login to be able to pay. These people just lost any hope of seeing me as a customer and I am glad Vesalia did not follow this trend.
I will be testing the Ryś with a Razer mouse and an old Logitech Wingman, I see that neither are present in the list of tested devices so I will give you feedback as soon as I can test this kitten.