What is it with Americans and their lawyers?? From 'Perry Mason' to 'The Good Wife' via 'LA Law' and 'Ally McBeal', they are all as cool as well-starched, highly educated cucumbers, working around the clock, constantly on top of their game.
No wonder Americans like to elect them presidents.
There is nothing inherently different about 'Suits' - it's impressively similar to all of the above-mentioned shows. I just happened to start watching and found it mindlessly entertaining.