Motorhome suspension aids

AdrianP

My wife (who does most of the driving for medical reasons) is very unhappy with the on-road stability of our 2014 Autotrail tracker EKS to the extent that we may have to give up altogether.  Air suspension aids have been suggested as a possible improvement. 
Can anyone with experience advise us please.  Would she see a substantial improvement or would this be a case of throwing more money after bad?