
The support is genuinely outstanding, and it's direct: they run a Discord channel where you talk straight to the engineers, not a ticket queue. I ran into a real infrastructure issue (some of my transactional mail was routing through IPs that got geo-blocked by strict healthcare-sector firewalls), and within two days their team had reconfigured and assigned me a new delivery tier that solved it properly. That kind of responsiveness and technical depth is rare. On top of that, deliverability has been excellent, and their CSA certification gives extra peace of mind for reaching German mailbox providers specifically. Review collected by and hosted on G2.com.
The main pain point is transparency around sending infrastructure. Delivery tiers route across multiple countries for redundancy, but which countries aren't documented anywhere upfront. A self-service option to pick (or exclude) specific regions for your own Delivery Tier - even as a paid add-on - would solve this at the source. Review collected by and hosted on G2.com.