The concept is unique, clever and appealing: you get to follow the creative process of 4 well-known portuguese comedians while they try to come up with a short story involving 5 characters having dinner. The comedians have 2 hours to come up with a script (this is condensed into about 30 mins), which you then get to see played out by actors in 15 minutes or so.
The series creator and one of the comedians (Bruno Nogueira) also plays one of the scripted roles, because... well, because it's his show, so he had to be in it, I guess. Nothing wrong with that, just somewhat strange.
A couple of the scripted actors are indeed worth watching, namely Albano Jerónimo and Nuno Lopes.
And that's basically it. I stand by what I said about the concept, but it wears out quickly after a couple of episodes. If this was a theatrical play, different every time it ran, it would be brilliant, and every spectator would want to go back several times to see a different show. As a TV series, I lost interest after the third episode, because they're pretty much always the same .