Really, really good. Ahem. Rant/sales pitch ahead.
I mostly stick to their cotton fabrics (both the poplin and jersey seem to be good quality) as their synthetics are quite plasticky. And I always pay the extra $10 to get things made specifically to my size. Some of their dresses have ridiculous amounts of fabric in them - the kinds of cuts that mainstream sellers are too stingy to make. Almost everything has pockets and all the dresses have bra strap keepers - those sort of little touches that suggest they've actually thought about things. Importantly, their measurements include vertical distances as well as widths so they can cater for short or long bodies - their trousers come all the way up to my waist and things that are meant to gather under my bust don't cut my boobs in half. Revolutionary.
Calliope is close to a foot shorter than me so she has the opposite problem with usual shops and she loves eshakti as much as I do.
Everything I've bought has fitted and I get random strangers commenting on my lovely dresses. I've got things of theirs that I've worn a couple of days a week for a couple of years without obvious signs of wear. They once screwed up and sent me entirely the wrong dress and promptly sent me what I'd ordered without asking me to even send back the wrong dress, which I handed on to a friend.
Their website says all the right things about treating their workers well, so at the very least they're pretending/attempting to be ethical and you get a little cards with your clothes giving the names of the people who made your clothes so you can personally thank them/provide feedback should you want to.
They're not exactly cheap but they have very frequent sales so I wait for one of them before ordering anything. And they don't send me a million marketing emails. The one downside is that they have so many styles you can spend a lot of time filtering through vast numbers of things that are not to your taste.
Oh yes, and the cat hates my collection of fabulous maxi dresses and flowing jumpsuits that whoosh past her face in our narrow hallway.