I like how easy it was setting up notifications in my site with this software! It works very well and is super simple once set up correctly (which takes only few minutes).
The support team also has been great so far - they're always willing answer any questions or concerns we have when using their service. Nothing really at all as such; just make use if its free services first before spending money because there's nothing wrong apart form being somewhat expensive compared to other similar products out already today. We had some problems getting our own domain but now everything seems fine again after contacting them about fixing things regarding DNS settings etcetera.