Pushwoosh is awesome. It's a great service. It's affordable. It works. And the Customer Service is outstanding.
We're building a live service for Android and iOS on Unity3d and needed a quick, simple push notification service. Pushwoosh quickly rose to the top with their Unity3d plugin, remote API (for PNs to individual devices) and simple integration. Add to that incredible and responsive customer service and they're the obvious choice.
Pushwoosh is well-documented and very easy to integrate. It is nice to have a reliable cross-platform plugin for Unity3D. We love that we can use the Pushwoosh API via our own server to customize push notifications as needed.
Our company is now using Unity 3D for a couple of major games in development and it became clear we wanted to benefit from this amazing work done by Pushwoosh team. It requires minimum efforts on our side and delivers functionality which is essential for most of the gaming projects.