Personify user for several years
I have used Personify at two companies to date. The biggest problem with the system is the customization and reporting piece. You will need to spend a lot to get what you want tailored to you. The danger of doing this is that when your programmers begin to leave the company they take that knowledge with them which makes the structure of the program very difficult to use moving forward. We had many struggles with receiving accurate reports on our data and ensuring that we could have custom reports. I have seen the interface at my past company built out to look beautiful but again you will need skilled programmers to help with this piece.
The customer service at Personify is the most alarming. They will continue to sweep your concerns under the rug and will not address items that are sticking points. There is a high turn over rate at the company so when you do finally find someone to work with they are more than likely going to be leaving shortly.