Isle of the Unknown is a hard-core and pure old-school product. I write the sort of thing I wish other people would write and publish. I love, love, love the format of Judges Guild's Wilderlands products. This sort of thing moves my imagination, and it has (to my druthers) very little wasted space. It's 99% pure gold.
That's what I am aiming at with Isle of the Unknown. I want all the wonder of the old Wilderlands, with none of the "OK, I've seen that before." Orcs and sh*t were new back then, but not now. So I've done a Wilderlands[-style] product that is all fantastic and no nostalgia.