I like how easy it was to use, as well as all of the features available. It's very user friendly! Honestly, there really isn't anything bad about this program. The only thing I dislike is that sometimes when you are trying to send out an email with your contact list or group, it'll take awhile before they actually receive it. If you're looking for something simple yet effective, look no further than innity. They have everything from advertising products to text messaging programs. As far as my personal experience using this service, I love being able to create different ads (adsense) and even customize them if needed.