Avantgarde's are Great but Bass Integration?

I just back yesterday from an extensive audition of the Avantgarde Uno and Duo horn speakers. In a word, jaw dropping incredible speakers but .......I never felt really comfortable that the bass integration was going to get quite where it needs to be. Too much bass, too little, slight to noticeable bass to mids transition etc. We changed the settings on the subwoofer, moved the massive Duo's around, which actually was not hard given how the speaker is designed, changing setting positions etc. This speaker more than any other I have heard conveys a "you are there", "organic", and "pure oceans of spatial dimension" qualities in the all important, for my musical tastes, midrange and up. These speakers are so good that once we got things very close to being there with the bass I was convinced that anybody considering speakers, no matter, how little or how much you spend really need to hear how a speaker can take you to another world given a good recording.

What has been others experience with this phenomenial speaker especially in the area of bass quality and integration with the rest of the system?