It's easy to manage, it allows us with our customers that we have access at all times without any problem; so when you need more information or anything else related can get them right away! The program is very simple but not boring because there are many options for customization of fields in order to increase its use by users such as myself who do marketing activities from time-to -time with no problems!! I dislike nothing really about this application. We could be doing things better if they had implemented an automatic system like "auto responder" which would allow me send emails directly through email instead sending each one manually (no offense). But overall my experience has been great until now since i began using marcelisolutions. !