Yeah, HPLLP is really good. Chris and Chad are really smart about their analysis in that they don't go beyond what's necessary - they analyze the books not like literature students and all that jazz, but like a normal Joe would be reading it. They actually cover his entire bibliography, for the most part, including his collaborations and ghost writings. There's a lot of duds in his work, but the good ones are really, really good.
They've expanded since finishing Lovecraft's body of work, doing a subscription model for further horror analyses. In conclusion, it's dope.