I've been occasionally using this mascara for several months now, and I can definitely recommend it as a great option for those who are mindful of the packaging AND don't like their makeup looking to obvious.
(Offtopic: I LOVED how the seller packed it, in a simple paper envelope and nothing extra! And a nice handwritten note, too ^___^)
It does stain my eyelashes (which for some reason go from dark brown at the roots to almost transparent at the ends, so giving them some colour is nice), and at the same time that's all it does, without "adding volume" and being all ...well, not "cakey" per se, but — you always see that the mascara is there. I guess it's just me, but I hate to see (and feel) any added layers on my face, so your mascara works perfectly, and I love it.
Ah, and the reason I found your mascara on google was that I was looking for a mascara that would be the closest to being zero waste, and I'm perfectly happy with what I got.
I'm not much into makeup, but I'll definitely be reordering this mascara once this one runs out.
Both the mascara and the applicator come with handy cap (the applicator) and lid (mascara), so they can be carried around without risking to stain anything that isn't supposed to be stained =)