The colors match their cap colors perfectly as in identical. Even on my tester paper which happens to be light yellow and not white their matches are perfect! The colors are vivid, bright, and come in actually useful shades: 4-6 variations of the primary colors, plus one opaque and one black. Great ink flow (not too much and not too little) with minimal bleed through. They have sturdy brush and fine tips (my best guess is 1.2 mm Fine tips), and the best part: they have cap-able caps! OMG the caps actually snap onto the other end of the marker while in use! Never will I lose another cap (as I have with so many of my COPIC markers) because their caps don't cap to their other ends.
I love that the brush tips are firmer for better writing control - definitely better than most of my other markers (including COPICs) that have a softer brush tips that sometimes flexes too much. The shape of the markers are round, but they are thicker which gives excellent tactile and wrist control - something that I never considered until using these. I can get longer and straighter lines with one movement - huge bonus!
The markers are alcohol based and therefore not affected by freezing temps, but I have experience with receiving markers in the mail when its below freezing outside - most often frozen markers need a few minutes to acclimate to perform 100% when they get too cold. But NOT THESE! They have been sitting in the mailbox for hours and it's 6 degrees (F) out. I literally pulled them out of the box freezing cold and they produced ink on demand.
Shipping was also lightning fast - one day shipping fast. I usually try not to leave markers out in freezing temps - I didn't expect them so soon. I generally don't like to leave markers out in the freezing temps if I can avoid it, but these markers don't seem to mind.
Also comes with great customer support info and a bleed through liner.
Honestly the best alcohol markers I have tried, and I I have tried pretty much all of the brands over the years. HOTU for the win!