The best part about this software it's ease in use for both user experience perspective (as I'm newbie) or technical aspect(s). Also its integration with other third party applications like Gmail which makes their life easier when sending bulk email campaign throughout day time hours! Nothing so far but if you are looking into automation tool then definitely go ahead!! We have been using BoBERDOO services since last 2 years now we love them they provide us great support team who guide us step-by-step process towards building our own solutions at no cost too much money unlike others where there will be hidden charges after first trial period!