I'm having a hard time figuring out why readers are so split on this one, as it had pretty much everything I look for in an 80s horror novel: strange, ominous atmosphere and eerie vibes throughout; well-drawn and sympathetic characters; a mysterious threat that remains nebulous and intriguing throughout; etc. The story does take its sweet time, but I was kept entirely absorbed by this story of a family, newly moved to Beverly Hills, who are tormented by an ambiguous, deadly evil in town known as "the Darkside," as well as the creepy cult-like activity that’s apparently connected to it. It could destroy their lives, or take their lives.
A couple scenes seemingly exist only for Etchison to rail for pages against various modern -- in 1986 -- issues (i.e. cartoons being nothing but 30-minute commercials for toys), and there were a few too many "fake-outs" and literary versions of jump scares, but overall I felt this was an upper tier "quiet horror" novel from the boom era. The terrors may be subtle at times, but to me they were effective, even reminding me of David Lynch on occasion, though perhaps I was subconsciously affected by the Mulholland Drive environs. As is often the case for me when reading Etchison, I was unnerved even when nothing particularly scary was going on. And at only 240-some pages, it doesn't overstay it's welcome compared to many books in the genre from this period.
Recommended for those looking for a slow burn where the creepiness factor steadily builds and builds.