The best thing about optimal text messaging system it's very user friendly to use! I like that you can send messages from your phone or computer at any time of day. You do have to pay per message but if there are only two people using this service then its worth paying as long as they're both in agreement with each other. This software has been extremely helpful when we need help getting our customers' attention during busy times such as holidays and weekends where many call centers close their doors due to lack of business. It also helps us keep track of important dates which makes scheduling easier than ever before.