Have run a game based north of P'Bapar mostly after reading one of the KOK stories in the Knights of the Dinner Table regarding Bandran.
Bought the original beige books and got the 3rd edition setting and several of the supplements including Geanavue and the Coins trilogy which I hope to run someday although I plan on changing the venue to make it fit the campaign I'd love to run.
If memory serves the Blood & Shadows was dealing with the drow and twilight elves and their history was particularly good.
Look out for the Orc book although they don't have as much presence as the Hobgoblins there is a rather nasty subrace thats worth knowing about.
Never found it boring and like the idea of low magic, but my game never got far enough, the one I'm planning however I hope to make it epic but only so to introduce the PCs to the setting in a way that will make it unforgettable.
So far I've expanded Paladins so in the scenario I homebrewed the Paladin ran into a Paladin of the Rotlord and had a quick fight beneath the streets of a formerly large town.
Other than correcting the flaws in the Sorceror core class (and looking to add bloodlines since they really should have made it more different from the Wizard) I've haven't made any major changes but I am looking at altering the druid to make it more interesting since I think it might work better having access to all simple and martial weapons with access to light, medium and all shields since the Goods & Gear book (check it out!) allows for weapons and armour being made from not just wood, but bronze, iron (standard material for metal items) and steel (used in Brandobia, Kalamar, Reanaaria Bay and dwarves...) and their vow regarding what armour they could wear I think should be improved to at least include up to bronze since they always came across to me as using primitive weapons and armour to highlight their nature based origin. Still looking for opinions on that though.
Do you have any modifications planned for your camapign?