You just get more bang for your buck!
Unifab gives you extras that you don't get with other AI software... Audio up-mixing, vocals removal, converting from one format to another, HDR Up-converter, video compressor etc. You just get more bang for your buck, and you can install it on 5 PC's. It offers extras like upscaling the audio track from 2.0 Stereo to 5.1 or 7.1