This is my final contribution from the Cuba trip.
Interestingly enough, this place has been featured in a highly readable news feature on the embargo and Cuban economics on Al Jazeera, as I found out :
He spoke while dining at Rejoneo Asador in the capital's upscale Miramar neighborhood, an establishment that seems to illustrate his point. The restaurant, which serves mammoth portions of beef, is subject to a government rule limiting eateries to 50 chairs. So the owner created three dining areas — adjacent but technically separate — for a legal total of 150 seats. The venue includes a cafeteria called Tic-Tac W, whose symbol is an upside-down McDonald’s logo that represents two interlocking J's, for the co-owners' common first initial.
See : http://america.aljazeera.com/articles/2014/3/24/in-cuba-us-embargoelicitsashrug.html
It's a "new kid on the block"-place and I must say I like it very much.
The best and freshest baguette sandwiches in Havana with many fillings to choose from, cheerful, cheap and great quality and service.
For text and Pictures : http://flyingcigar.de/startseite/havana-hole-in-the-wall-6-el-rejoneo/