Been watching these today, they've been fairly interesting overall. Instead of wordy meta-commentary or worthless summary written by bloggers and journalists this is literally artists expressing their thoughts and feelings of the genres and scenes they've become associated with.
The sincerity and overall vibe you get from the musicians of each "genre" varies so much - for example the "post-dubstep" and LA beat scene episodes were pretty positive in tone and coherent whereas the one about tumblrwave actually pissed me off at one point. They included some fucking obnoxious probably trust-baby 20-somethings saying idiotic shit about 90s culture and living in a 1890s house next to interviews with actual musicians like Le1f and Ultrademon. Anyway, I know many if not all of these genre and labels have been oft discussed on watmm, so surely someone else would find these worth checking out.
Here's the preview, they've made 6 episodes so far and a few extended interviews with a few musicians.