I'm lucky enough to have an office in the same building as Simeon (the owner), whenever we've need to have our coders do some really intense weeks, we've sponsored full food for them, and they have loved it.
I eat here pretty much every day when I am in Bulgaria, and I never ever think about travelling even 3 blocks to another cafe.
The Daily specials are extermely affordable for lunch and night time dinners are quite nice, lots of variety in the menu.
Super laid back atmosphere (lots of foreigners, english, american etc)