This is a great new addition to 17th. I think one thing you can't have too many of are coffee shops.
I popped in with a friend for an iced mocha ( delicious and not too sweet as requested) and the staff were fantastic. They looked like they actually enjoyed their jobs.
It's a very cozy space. They offer a few pastries as well but it's mostly just drinks on menu otherwise. The prices are similar to those of P+S or Analog.