I want to like this contract more than I do. The idea of enabling 2-hero decks -- like how Grey Wanderer enables single-hero decks -- is attractive, but in practice I rarely feel like this contract is worth it. As is often pointed out, you can almost always better accomplish what you want your deck aims to do by subbing the contract for a third hero. The contract simply does not provide sufficient benefit, in my opinion, to offset the steep cost of losing your third hero. I wish that it didn't come with the additional threat increase -- I want to run 2-hero secrecy decks, which help make up for the resource loss, but it's not possible with an additional 8 starting threat. That's a shame.
tl;dr - this is a contract that I want to love, but that doesn't love me back.