I've only seen the second and third season (not even sure I totally saw the 3rd season).
I actually really enjoyed the high-intelligence chess-playing aspect of it and one day I plan to watch the first season and the rest of the seasons.
Harvey Specter and Michael Ross are dope.
Like another mentioned, I just fell out of it and never caught up.
My metal band, Ivory King, has 2 songs out now - allmylinks.com/ivorykingtx (all of our links there so you can choose which one you'd prefer to use)