Is Vizzik worth it??

So I've had vizzik for awhile and have started painting which im very much enjoying, but i can't really seem to fit him into a list without it feeling like a waist of points (2k), especially when i can include thanquol. Sorry if im just an idiot but I'm just wanting to hear what kind of lists he works in and how he's really worth it, expecially over thanquol???