They're pretty nice. I have the purple and it's good. Just watch out because if they aren't capped and screwed on tight, you're f*cked. I got a nice stain on the pocket of my jeans and my underwear.
I've tried every color and they're all good but the black, white and silver are the best. They never fade and write so smooth. The black is all I use on stickers. Silver was the first marker I tagged with. Buy these now.
These and unis were the first markers I used. I fell in love with them. The black is amazing, my blue and red collect dust lol and the green fades too. The black is so opaque as hell and never fades. Green is a really nice color but only use inside. Mine faded to a light blue/teal color after a week. I'll take these over my OTR any day.