The 206B3 is used in only two roles. It makes an adequate personal transport for a PPL holder, but as the distance is often around 250nms it's obviously pretty slow.
In the other half of it's life I use it professionally for any film work that doesn't specifically require a twin. In this role it's obviously pretty underpowered but I don't want to go to a French right-footer (too old to invert the brain during gentle heading alterations using power instead of feet). Also, since all of my work is VFR I like the amount of visibility you get from the thinner Bell pedestal instrument panel.
For a smoother airframe I love using the 206L with the nodal beam for nose mount work, but the triple vertical fin means it doesn't like going sideways. With gimbal mounts these days (see the thread "BBC guide for filming pilots") this has become a much less important issue.