I'm hyped. I enjoyed all the other Netflix Marvel heroes, and even though Iron Fist was my least favorite, I wouldn't say it was terrible. I do hope that Danny Rand does get a chance to grow and change as a character, since clearly his character arc even in the first season is defined as "This kid really needs to grow up."
I actually like how Netflix handled this more than Disney did with the Avengers. It feels like I'm in a much better, more deeply invested place with these characters since I got to follow them through at least one entire season before throwing them together.
Also, the lack of budget for a Netflix series guarantees we won't get a CG alien army they have to fight in the final episode for the fate of the Earth. I am, however, okay with a million, buzillion ninjas.