I visited from 3-7pm on a Saturday with a friend to catch up over food and there was a steady flow of ~10 customers in the cafe during those hours. My friend and I had the chai latte, eech, ham and cheese pretzel sandwich, braised lamb shank, apricot cake, and chocolate cake. They were all great, and my personal favourite was the braised lamb! It took about 5-10 minutes after ordering for the food to be served and we ordered dessert after, which came immediately.
I loved that all their items are on display so you see exactly what's in it and the bar tables had hooks underneath to hang jackets/bags, which I always find useful. The interior has a black and white theme and wooden accents - very clean. Not to mention, their washroom has a 'wow' effect (can't speak on the male washroom though). I would definitely bring my parents to try the restaurant side of Beiruti.
Tip: There's a Groupon available for both the cafe and restaurant!