Lately I’ve been using inland brand natural Pla. It prints so nice and I find that it adheres to the print bed really well. My go to filament brand used to be Amolen but some of these cheaper filaments have gotten so good in recent years.
I like the polyterra line too. My favorites are the cotton white and sapphire. I’ll have to give the army blue a try sometime. I’ve tried a spool of their polycarbonate and it was nice though difficult just due to the nature of polycarbonate. I also used to think polymaker was expensive brand but I’m so glad it’s affordable.
The muted red polyterra feels like terra cotta a little. The matte additive is really dense, so parts feel heavier than other parts (polyterra PLA and PETG are the two densest non-filled filaments I’ve used). Whatever the additive is, it also increases the strain to failure by a lot, so it’s less brittle.
My only complaint about polyterra is that it is not as good at layer adhesion as the regular PLA/PLA+. I can’t push my printer to the limit on speed without getting a part that wants to separate at the layers, so I have to slow the print speed and slow the fan down, and I usually print a little warmer.
I’m finishing up my first Polyterra PLA+ print right now. It has less of the additive so it’s advertised as a satin finish more than a matte finish.
For what it’s worth, I just bought my first 3kg roll of filament for a big project, and I chose polyterra PLA in black.