I tend to be in the group that's more lukewarm about this place. It's not bad by any means at all. I love the location and the set-up of the place, but I don't think their pastries and non-coffee drinks are anything special. I don't drink coffee, so I guess I'm missing half of what they have to offer. Regardless, this is a great place to go chill and have a conversation at.
This place is five blocks from my house and I really should make a habit of coming here a bit more. I tend to hit up Lux more often, but I think this place offers a more homey feel. Lux is cool, but ultimately you feel like you're eating/drinking in an art space and Copper Star is more of a place to get cozy and do your homework over a cup of tea. Anyway, definitely check this place out because it's become a fixture of sorts in the upper central part of downtown and on First Fridays.