The show is uncomplicated and funny. So far, the lines have not had fake, awkward moments, and the dynamic of the actors is good. I like the easy action, and the cheerful vibe that these episodes so far are sending out...
We have three buddies, one of them married and having a child, one with a just-moved-in girlfriend, and the other having short term relationships. They talk about whatever happens in their everyday lives and try to sneak a thing or two pass their partners, but without being douches. They manage somehow not to be boring either. The girls are also OK, not the main characters, but the permanent ones are well-drawn, and attract sympathy.
It's more a "relationships in the city" sitcom, but the dialogues and the friendship thing do remind of the SITC series. The writers have experience in good-rated comedy shows, so that explains it. Actually, this here Traffic Light is the American version of an Israeli sitcom, Ramzor,created by Adir Miller. On the other hand, Bob Fisher co-wrote Wedding Crashers, which had the same guys-talking-about relationships-without being too nasty air.
I hope they manage to keep this one going well, and not make artificial efforts to pump it up. The latest sitcoms on TV are following a "forced" tendency, that I cannot yet put into words, but I do not like. This one is not in the same batch.