I don't get it. What is the point of comparing this to Viscosity? Why do this to Viscosity? Are you on some kind of revenge path?
Viscosity is an UI I have used forever, after buying it for US$ 9 at that time. Later Viscosity came free, bundled from VPN providers.
If you want to offer an open source VPN client, that is very kind, nice and applaudable. But pointedly comparing and attacking one of the whole crowd of VPN clients I find ethically questionable.