An identity crisis...
This place looks fantastic and is everything a deli should be. I'll say from the outset that the pastries look so good it draws you in: indeed the brownie did not disappoint, and was probably one of the best I've ever tasted.
However, The Life Goddess seems to be having, what may be teething problems, but what currently amounts to an identity crisis: it isn't just a deli, but doesn't quite work as a cafe/restaurant. Staff seemed unsure whether they were serving at the counter or waiting tables, and it wasn't clear whether you order and sit, or go sit and peruse the menu.
The main I had, a beef stew in tomato sauce, was bland and the beef was so tough as to suggest another 4 hours cooking: the £10.50 price tag would have been extortionate at the best of times in a place like this, but it should taste better at £6.50.
In short – enter it as a deli and enjoy a great cup of coffee, Greek mezze and pastries: but the hot food needs a lot of work.