Kannel v's Message Master XP

[George C]

Was wondering if anyone has had the chance to play around with Derdack.com MessageMaster XP and what is you opinion of it? [ Apart that Kannel is open source..:)  ]    What are the pros & cons?   Newcomer looking to setup a SMSc solution for bulk SMS, 2way, Wap, ... and would greatly appreciate some opinions.   Thnx George Chris