Kuretake ZIG Memory System Millennium Fineliner Pens
I've used the Kuretake Zig Millenium Fineliner pens for more than a year. Here is a short review based on my experience.

I’ve used these pens for drawings like In Libera. I’ve got nothing negative to report back. They are solid. They are durable. The black is good. They are ergonomic and comfortable to hold.

TL;DR - These pens are great!