I may or may not have had a hand in sunburstjazz1967's setup.
Those RCF 735/745s really are great, you never struggle for vocal volume and the woofers are beefy enough to take a fair amount of punishment, including some pushed kick drum. All in a package which really are quite portable and in most situations, are great even without subs. These things really kick out far more bass than most tops in plastic cases that I have ever used. They will easily keep up with your standard 12 tops/15 sub set up. Easily.
Those mini array systems? In comparison, rubbish.
I did the sound for a band I depped for a couple of weeks back - with Mackie 450 tops and a couple of RCF 705s. Nothing particularly exciting about the front of house but I did take my smaller digital mixer with me. Being able to gate and compress the kick drum for starters makes a massive difference... suddenly turns a floppy flap into a proper kick thump that gives the band some energy. Again, compressed vocals and powerful EQ makes the vocals sound light and airy as opposed to boxy and flat, with compressed mixes going to my inear rack that I let the band use... it was a big revelation to them as to how their PA could sound. In fact, even with a PA like that - which isn't super money by comparison, you can put the whole band through and have a much, much better sound out front. Everything just sits right and there's no fighting in the mix...
And as mentioned before, the 31 band EQ is a Godsend. The ultimate tool to have built into a digital mixer to help fend off feedback in even the most difficult venues. I don't think, given the price that the Behringer units are going for, there is a reason for anybody not to be using a digital mixer.
Hopefully it's landed me a few more deps too