yeah the anycubc printers are a pretty decent design.

The colourants used in printer filament makes a real difference to how well they print.

red is best, white is next best and black is pretty good.
Blue, not bad.
Orange - excellent.
Yellow - can be difficult, it's also the hardest colour filament for manufacturers to make - they hate it lol

Grey/silver filaments are also very good to print with.

Pla with wood is really stringy, tpu (flexible filaments) are trickier to print than non-flexibles. Red is definitely the easiest there.
Clear/transparent filaments tend to be more stringy than coloured ones. But also stronger and a little more flexible.

Just avoid abs :-)

The anycubic will print all the regular filaments - no problem.

Pet-g totally fine for a cup holder in germany :-)
I have a pet-g sink strainer that gets boiling watre poured over it regularly.
No signs of temperature effects at all.
Pretty impressive.