What do people think about Teemill?

I am a one woman business who wants to run an ethical fashion brand. I came up with Teemill, as they use GOTS Certified cotton and PETA Approved Vegan inks, and they are circular by design. It is print on demand so no landfill from unsold stock. Am I missing anything/is there a better partner out there for sustainable graphic tees? Sadly I cant afford (yet) to get my own printing equipment, and I dont fancy using vinyl becuase it doesn't compost. What are people's thoughts on this... is there a better option?