The company's name may be One Bad Egg, but The Apelord is one good product, a good model for what creative third parties can do to extend D&D 4e. The first quarter of the PDF provides D&D players with a new PC race, the apelord, fully supported with appropriate racial powers and feats. The remainder of the product gives DMs Monster Manual-style writeups of various types of apelords, including undead versions. All are interesting and well done.
There's plenty of storyline (fluff) in this product to go along with the crunch; a second, two-page PDF gives buyers a little bit of the context for the story elements. However, if you don't want to use those story elements, you can easily rewrite them for your own campaign, with no more difficulty than adding genasi (Forgotten Realms) or warforged (Eberron) to your homebrew setting. For example, One Bad Egg locates the apelords in "the north," but I'll be finding a place for them in my tropical islands campaign.
[5 of 5 Stars!]