Personal opinion — BL books are bad.
I genuinely tried to get into BL. I read the usual novel recommendations (Spear of Shadows, City of Secrets, Shadespire and others), a few novellas and collections (Code of the Skies, Maledictions, a handful of others) and listened to the first Gotrek audiobook. I'm still trying to get into BL — The Dark Harvest is next on the reading list.
I read heaps of fantasy. None of the BL books I've read so far stand up to work by authors like Pratchett, Hobb, Sanderson, Jemisin, etc. Their stories tend to have little to no character growth. They rely on tropes without surprising the reader by subverting them. I've found them tedious and boring.
AOS writing's rife with my pet peeve too — with a few cherished exceptions, everyone speaks the same language. In real life, take a trip across a landmass and you'll likely hear dozens of different languages spoken. If you're lucky, in addition to their native language(s), the people will speak a lingua franca (possibly badly). In AOS, you'll travel across entire worlds and speak to people from a different era WITHOUT ANY LANGUAGE BARRIER AT ALL.
This bothers me enough to caps.
Anyway, given the hype around The Dark Harvest, I'll persevere for at least one more book. 🙂
[EDIT]
Oh, I will say that I've thoroughly enjoyed a number of AOS short stories. They tend to zero in on quirky and interesting aspects of the Mortal Realms. There's not enough room to fall into the usual formula of [travel from A to B; fight; travel from B to C; fight; and so on].
He Feasts Forever was a standout for me — a story about ghouls who have been away from their liege for too long and start to regain their senses. I loved some of the Malign Portents stories, too.