Loot Tavern has been around for a while but they dont produce very much. The subclasses I personally love, the crafting rules are nice if you want to really focus on that aspect but not needed. New spells are always a pulse highly thematic however so might not see much play. New magical items a very very thematic and revolve around being crafted from monsters. (mimic armor, ooze flail, ect) I like bio magic, symbionts and the like so to me it is worth it, also I enjoy the cooking section for eating monsters and gaining small temporary buffs.