I know products like this are ubiquitous but I really like the response one gets. Kudos on launching!
The pricing, however, is a little confusing. A seemingly very-generous free-tier (though the "Up to 250,000 IP requests / mo" is a little confusing, what dictates whether one gets the full quota?) and the next tier-up at 250$/m is a bit too rich for my blood. Wouldn't it make more sense to have some in-between tier where you charge per 1000s of requests or something? I fear the jump will preclude people from going to the 'Pro' tier.