I haven't had any of the issues mentioned by other reviewers. No clogs, layer separation, nothing. My prints turned out beautifully and no more brittle than my standard PLA. I used glue on a smooth bed so it's hard to say how adhesion would be without it, but again, no issues. If I had one complaint it's that I have to extrude quite a bit when switching from this to another filament as the glitter tends to show up in the first layer of the next print. Not worth docking a star in my opinion.