I just finished painting a 10 man unit of Mechanithralls. These models put me to 12.94% fully painted of my entire collect, 33.71% fully painted of my Cryx. I'm happy to have them done, even though I wish I did the 3 Brute Thralls that attach to the unit at the same time. They are next on my project list!
This unit satisfies my painting requirement for Mechanithralls for my Scavengers of the Line Theme Force for Iron Lich Asphyxious as well.