This provider has been excellent in communicating with our customers so far! I really like that they have built-in tools to send eblasts, track opens/clicks for links sent through emails or text messages as well connect all of this information together if needed (if you're looking at 3rd party email providers) - which is great when there are many vendors doing similar things since it makes your life easier by consolidating data management into one place instead having tons of different places where we would need them stored somewhere else.
The interface can be difficult sometimes but not too terribly bad once familiarized wtih how everything works - just keep reminding yourself what each button does because some buttons do more than others depending upon their functions etc!! It's an overall good product though nothing specific comes up right off hand from using previously other programs out here before switching over completely unless its something wrong within.