This show starts out as a trashy, glossy, action-packed and very, very watchable entertainment. Successful bank heists are celebrated with a sky-dive, for no other reason than to have a very cool skydiving sequence set to pumping music.
The genius of this show is that it very, very gradually starts to deepen, uncovering layers to the main characters and slowly revealing their depths and complexities. It does this so gradually that you don't even realise it until realise you're watching some of the most beautifully-drawn characters on TV for a long time.
It then becomes as much a character- study, and a character-driven drama - as it is an action-packed heist show. The issues, plotlines and brilliant twists and turns are consistently unpredictable and original.
Some of the heists stretch credulity - as action sequences often do, but the whole thing is so skillfully-woven that it doesn't matter - you happily buy into the lack of believability in the heist/action sequences, because they're so well integrated into the brilliant character studies and first-class storytelling.
The casting is perfect - everyone is bringing their A-game but Shawn Hatosy is astonishing and Ellen Barkin is hitting a career best.
It's a Breaking Bad-level achievement, possibly exceeding it at times. One that flew under the radar.