In the Marvel Universe DD, Luke Cage, Spider-Woman (AKA Jessica Jones), Iron Fist, for the most part, take on street level thugs, gangs, and local bad guys and fight for the guy/gal on the street and for "their city". This is the flip-side to the stories of global and universal crisis that are typically taken on by Marvel's more powerful heroe's where the focus is more on the action and less on human drama. This makes the stories more of a crime procedural with a (super)hero and makes them easier to relate to since most people understand politcal or police corruption, gangs, and drugs than might believe in alien invasions or gods coming to earth.
Netflix's DD intro story seemed pretty true to the early comic book versions that I remember. I didn't remember the black homemade costume which was reminiscent of the Batman: Year One storyline where Bruce Wayne played vigalante wearing a simialar getup and also got his rear handed to him early on.
The Kingpin in this story is still a sociopathic, vicious, self-absorbed, controlling, power-mad villain but not yet the mature powerhouse that he becomes in the comic books. In the comics he was sufficiently powerful (although not superpowered) to hold his own with Spider-Man which didn't really come across in the Netflix show until the final fight scene between Kingpin and DD in episode 13.
I was never that interested in Kingpin as a villain. That Netflix spent a substantial amount of time on Kingpin's development and backstory in this series did seem to drone on to the point that it felt like filler. However, I think that Vincent D'Onofrio did a believable job of playing the self-deluded bad guy who continues to deny his darkside until he's finally in chains.
Elden Henson who plays Foggy Nelson, the somewhat clueless attorney, doesn't get much credit but does an excellent job of portraying that character from the comic book. Foggy is the hapless, less than confident, partner that has tied his career to Murdoch who he believes needs him as much as Foggy needs Murdoch. When Foggy discovers Murdoch's secret and realizes he's really not that critical to Murdoch the inevitable meltdown occurs.
Deborah Ann Woll was also believable as Karen Paige who is not the brightest bulb in the pack and is too naive and self-absorbed to understand that her actions have consequences, which involve putting herself and others in danger, while she continues her quest to bring down the Kingpin.
Although it could have been condensed I'm glad Netflix laid it out the way they did. Comic's are serialized and most stories are not completed in a single issue so that the writers have a chance to go deeper into the characters and their actions and to develop side stories and sub-plots to keep the reader interested and coming back. I think that's what Netflix did with this DD series and I'd definitely come back for more. Hopefully they will keep the same production values and quality which were excellent (with a few minor glitches) for the other stories. I'm very much looking forward to all of them.