I like that there are many options available when creating an account. It's very customizable so you can create campaigns specific to different types of users/companies if needed. You can also track how much time each user spends in the application as well as what links they click on (which allows me to see which ones have been clicked most). There isn't anything really negative about this program. The only thing I dislike is that sometimes some links do not work properly or don't open at all. This has happened multiple times over several weeks now but we're still using it because it does provide us with valuable information. We've used it to train our employees before sending out emails. It helps them learn from their mistakes without actually having to send any real email through our system.