Netflix original shows(I've seen about half and liked all I saw. The rest all have pretty good reviews or trailers that looked good):

Stranger things
Narcos
Daredevil
Arrested development (sort of)
Jessica Jones
Luke cage
Iron fist(coming soon. Looks good.)
Peaky blinders
Blood line
House of cards
Unbreakabke kimi Schmidt
Marco Polo
Last chance U
The crown
Medici
The killing
Black mirror
Longmire
Series of unfortunate events
Santa Clarita diet
Orange is the new black
Frontier

Other great shows available on Netflix that I've seen at least some of and liked a lot:

Sherlock
Breaking bad
Better call Saul
Broadchurch (BBC version)
Jonathon strange and mr norrell
Fire fly
Black list
The flash
Luther
The walking dead
Continuum
Futurama
Better off ted
My name is earl
Raising hope
Lost
30 Rock
Parks and rec
Top gear
It's always sunny
Scrubs
Turn
Himym
The office
White collar
The finder
Burn notice

There are a ton more, these are just the ones I'm familiar with. Also, this doesn't even touch on movies, documentaries or comedy specials which there are many great ones as well. That would keep anyone busy for a very very long time and well worth $10 a month.