If you're looking for faithful reproduction of acoustic instruments and vocals, look no further. Great price/performance ratio for this type of music, very transparent sound, and we were shocked by the sound level of the set. Our aim was to set the set for linear response, and the sub pot on the system was left on about 10:00 for this - very nice, even response throughtout the entire sound spectrum.
The high-mids were maybe a bit agressive, and the highs are pronounced, but those can be set with EQs if you like.
We faced two issues using the system, one comes from the nature of the beast, the other one doesn't:
1: the sound is very directed, and in the beam the sound is very strong even 10m away in open air, the response is very even. But when you go above the beam, the sound weakens considerably. We consider this to be the nature of the speakers not to spread upwards, so it's not a failure, it's just a circumstance.
2: the speakers have a very heavy backfire to the stage - actually the stage was so high in volume in the mid range that it caused some issues with feedbacks.
We also used the system before in pubs for quite bluegrass gigs, and it excelled also there, the feedback rejection (speaker behind us with 9 microphones) was also nice, but that's another topic I think :-)