We're looking into how that test is being run, but it's not at all reflective of what actual users experience on the platform. There are many factors that could impact what is being sent to spam that aren't disclosed in these kind of tests.
It's true we offer a premium product, but we do so at a competitive price. At scale, our pricing model compares favorably with Sendgrid. Our pricing strategy is all about simplicity and providing lower prices as you grow with us. We don't have any kind of feature gating pushing you into higher tiers nor do we have punitive overages.