This is very much a sit com. I'm not a big sit com fan in general. I reacted to this the way I would any other sit coms. I laughed here and there, but my thought was "why is this so stupid?"
All that to say, this is basically your typical low-brow sitcom. But the difference is that this is the first American show I saw that captured the Indian experience in a way that felt authentic. You will see how Indians from different regions interact with each other. You will see how recent immigrants, naturalized immigrants, and American-borns interact with each other, as well as with visitors from India, and all of those interactions really ring true.
But their paths cross with people from other communities as well. Of course we only have one Middle Eastern character, one black character, and so on, so we don't really much of these communities, but we just get a little bit of how they interact with the various Indian communities.
So yeah, while I wouldn't say there is much thematic substance, what recommends this show is how well it captures the Indian American experience.