I use the SMS Broadcast service to alert our members to any changes or updates to organised events. It takes less than a minute to compile and send a message to all members, very useful if making a last minute change to the start time of an event. The scheduling capability is very useful for sending reminders, you can set it all up and then forget about it. Uploading group lists couldn't be simpler, it makes setup very quick, everything just works. The best thing though is that unlike many other SMS service providers your credits never expire! Thats great when you don't know how many you think you are going to need day one!