i have a molotow 640 PP burner and i fucking hate it. the valve system sucks and is always leaking, leaving a puddle in the cap so everytime i open it, i take a nice shower in bronze paint. the actually color of the paint is really nice, and the nib lasts through fucking everything, but the actual marker itself is bullshit. get some OTR minis, those are the shit. OTR minis FTW!