A few weeks ago I got markers by SKETCHMARKER Brush from a renewed line. I have already started them in several pictures and can share my experience.
The nib is a fire! Flexible and firm, wet enough, and what is essential it is possible to draw both thin lines (they really stay thin even if you move your marker not very fast) and fill big spaces! In addition to this company produces about 400 tones (and soon it is going to extend a line up to 600 colors wow) among which there are lots of mixed colors, dusty and those which you won't meet in other companies. Cool! And for sure value for money.
To finish with, @sketchmarkersclub is a worthy product. Thanks for providing an opportunity to test your markers.