If you don't look the part don't bother.
After recently moving here from NYC I've been on the hunt to find the perfect place to grab a cup and read a book. I walked in to stares, but no smiles. I ordered a large coffee to stay, but the barista gave me a to go cup. I noticed other people had ceramic cups, so that was a little disappointing. I sat down and read a chapter, but didn't feel comfortable staying much longer. I clearly stood out which didn't bother me but i guess other people don't want a "shady side" looking person in their shop.
I will say the food smelled great, and they have a yummy looking menu. I would've definitely come back for food had the atmosphere been a little more welcoming.
Different strokes for different folks. Hopefully other people have a better experience.