I went on Saturday in the afternoon and it looked like it has been closed down. You can go and check for yourself. It could have been an off day, but the inside was a mess suggesting to me it was closed.
There are two other falafel places that I go to often. One, is in the colonial zone and is reasonably priced. The other is on Churchill in the same shopping center as Baskin Robbins (there is also a GNC in the same plaza but opposite the main entrance). The place on churchill is a little pricey for a small sized sandwich, but it is the best I found so far.
Although, I have been to both of them a number of times, I still don't know the names.
Yep, the place I was looking for is alive and apparently very well. I found it down in ciudad colonial, going by the name of Falafel El Rey on Calle Padre Billini and Sanchez, though it's not apparent from the outside - no signs - no name, just the falafel aroma and the sound of music. It's kind of Dominicanised rather than Medio Oriente but a great place for a fun evening, falafel is good, so's the shwarma and a great atmosphere.