Illriggers… who’s played one from the new MCDM sourcebook?

I’m really interested in playing one in my next campaign. I’m debated between the Architect and the Painkiller. I have been playing for a long time (decades) and I enjoy the challenge of playing such a technical character class.

Feel free to share your builds? Or concepts? After reading them, I really don’t see much need for a multiclass. I’m interested to see what direction you all chose.