I’m using the “SEND SMS USING XML” to text for assistance to family members at a 176 senior resident apartment facility. The interface was very straight forward and I had it up and working and tested in about 20 minutes. Other than a problem with my credit card being accepted, I switched to using PayPal and haven’t had a single problem or fault in it’s month long use of the service. My correspondence with support has been great even with the time zone different. The response time is amazing the message is received on the phone in about 8-10 seconds.I would highly recommend Clockworks messaging API. STH