Nope. We're seeing only upsides (well except MailChimp's online email designer is light years ahead of the alternatives). One of our huge wins (other than price

Nope. We're seeing only upsides (well except MailChimp's online email designer is light years ahead of the alternatives). One of our huge wins (other than price) was delivery times-we saw a distribution time for 300k emails drop from 12+ hours window to only a couple of hours.