I also finished Iron Fist. I liked it and put it generally on par with the other Marvel series.
I would rank them as:
Jessica Jones - (by far the best for me)
Luke Cage - (this was neck and neck with JJ for me until the stinking turd of a final episode.)
Daredevil/Iron Fist - I rank these pretty much on par with each other as I think these shows are very similar - in fact a bit too similar. When Iron Fist was at the docks I was wondering when he would bump into Daredevil as it felt like I was watching a rerun of Daredevil. Daredevil probably has greater highs (Hello Fisk!.. more intense, violent fighting) but also lower lows (I think the guy playing Daredevil is by far the worst lead actor on any of the series - mainly during the day as the lawyer where he looks like he's reading lines off a screen on his glasses.) Iron Fist's biggest flaw was that it felt too much like Daredevil except more kung fu with a less interesting hero. But still very similar. I may be in the minority but I enjoyed the character played by Faramir - he was probably the most interesting character on the show. If you like the fighting a lot on Daredevil I understand the feeling that Iron Fist on average seems like a pale imitation. Having said that, I thought IF had some really fun fights particularly in the last few episodes. Another character I enjoyed on IF was Ward - the guy playing him was terrific. A much more interesting character than Oggy and True Blood chick from DD - both of whom had subplots that I had no interest in.
Keep in mind, I am not a comic guy at all. Even when I was a kid I was a casual comic book kid, mainly only reading Spiderman. I was by no means a collector.
In any event, I have enjoyed all the Marvel series so far and am pretty excited to see the Defenders! I would say none of the Netflix series have ever been as bad or annoyed me as much as Iron Man 2 did!