I could easily write a really sarcastic review of this show calling it a "masterpiece" and comparing it to Scorsese and Spielberg and stuff like that, but the show is genuinely really great. Filthy Frank is for a very specific audience, and from an outsider's perspective, it must seem really pathetic. But, the series knows that it's pathetic, and celebrates that.
And, while many episodes are just over the top absurd humor, Filthy Frank sometimes has something he actually has something to say. Now, while it is obvious he doesn't hold some of the opinions he expresses in a few of his videos (I mean, Frank is a character), but, other times, he actually seems to have something to say. For example, his commentary on weeaboos in what seems to be his most popular episode (if you don't count his Harlem Shake video), is actually pretty true and has a good message. Plus, that episode is pretty hilarious. All of Filthy Frank's videos are pretty hilarious! Even if they do get really disgusting and outrageous.
In the end, Papa Franku is YouTube at its best. It is disgusting , shocking, offensive, but still pretty insightful every now and then.