Pricing is competitive. They offer A/B testing for transactional emails, which I had trouble finding as most of their competitors only offer this for marketing emails. The golang library is quite decent; we were up and running in under an hour. I had a couple of questions which was answered quickly and competently via chat. Review collected by and hosted on G2.com.

There is a verification process which is not entirely transparent. They do aim to update you within 24 hours. Review collected by and hosted on G2.com.