It has been very helpful in our business, it's easy for us as we are not tech savvy at all! Very user friendly interface with great support available 24/7 via chat or email if needed which makes life easier when managing multiple sites.
There isn't anything I dislike about this software but would like more options added such as tracking jobs that have already started etc. We use service management system from another provider so using 2 systems can be confusing sometimes however there was nothing wrong with SMSServiceMgmt.