I’ve got the first few and almost bought GHDM (not because of the title, but saw it got really good reviews a few years ago), but pulled it out of the cart in favor of some Von Richten’s guides a friend recommended.
I did end up picking up the DA series, parts of the UK series I didn’t own yet, and a Jaquays adventure I’d not heard of: “Hellpits of the Nightfang.” I think I’ve got SJA1 somewhere, and will have to check it out. I’d loved the SJ setting, but the adventures I’d looked at had felt a little “meh” (though I hadn’t given that one a chance).