I print the same gcode over and over, so I bought a sample spool from here to maybe get some savings in the long run. It comes out just fine, but can't handle simple mechanical loads. Now, obviously that depends on how hard you try and how many perimeters you print, orientation, etc, but let me tell you, a couple dollars less. I wasn't impressed. It came in a sealed bag with it's own atmosphere and a sample filament. I'm not sure what the sample was, because it wasn't marked. Seemed like that stSee full review