My experience of these modern line array systems is that they just don't sound as good as the older stacked PA systems we had years ago. They may be technically better, but don't sound as good. The older systems has a sound that you could feel as well as hear , good bass response. Most of the gigs I've been to in the last few years with the line array systems have sounded pretty poor , lack of punch and decent bass , just a middy and drum heavy sound.
i know there are technical reasons for using these modern line array things , but from my experience , gigs just don't sound as good as they used to in the bigger venues.