FreeRADIUS vs Aradial RADIUS

Hello guys, I am a little bit scared how hard can be to deploy the FreeRADIUS, I found this in the internet: (aradial.com) this guys claim to have a very convenient and professional AAA server with a convenient price, does anybody here have experience with that "aradial radius server"? What would be the Pros and Cons of purchase it instead of have the FreeRADIUS one? Thanks again.