A number of things!

Our arrangements of the songs. As you will no doubt see from your searches and comparisons with other bands, our setlist contains nothing you wouldn't expect from a funk / soul / disco band.
 

However, how many bands have you come across that perform "Play That Funky Music" like this?

...or "Moondance" like this?

And in particular, we take pride in endings like this.

Of course many of the songs in our setlist are arranged more closely to the original versions, but the same meticulous care and attention to detail goes in to each and every one.

 

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Our sound system. As well as consisting of very high quality equipment, our PA is powerful enough to amplify the entire band (a smaller set up would often only amplify vocals, horns and perhaps keyboards). The advantage of this is not just a matter of more volume, but more a matter of increasing the quality and fullness of the sound. More details on our sound system can be viewed here.

It is not unusual for a band to come with a PA of this specification, but it is worth checking this detail when obtaining price quotes as some bands only come with a vocal PA.