This is a cheap fountain pen, about $3 or so, it's a refillable disposable, I'll explain later why.
The writing part itself is good, it might not compare to some higher-end pens, but it writes good when compared to the Pilot VPen/Varsity for example.
The build quality is HORRIBLE, to be honest, even the cheaper Crystal and Round Stic (which are like $1/dz) are better. The plastic looks cheap, has some rough edges and so does the grip. The pen is extremely light, so it also feels really fragile, and well, feels cheap too.
I read in some forum that the pen was made of metal, I'm not sure if that used to be the case or that's the case for the US or Europe.
I think this is my first negative review, but to be honest, for $3 there are better pens like the VPen. The Bic is refillable, and I believe takes universal cartridges, but I doubt that the pen will last more than one cartridge.