Yeah MBL sound like boom and sizzle at shows. But hey they sometimes have hot girls working the rooms 

I knew the state of some show rooms are said, but roughly how many of the exhibitors actually treat their rooms?

Using my NADs and cheapee Edifier monitors, I realize that out of all the parameters, I value mid range transparency and a smooth FR the most. Next would be how reactive the speakers are towards the room. Just a question to ask, what do you guys think of Coaxial speakers?

I've been in the MBL room when they allowed people to play music they brought with them.  I've noticed that more the more insistent people are accommodated, and they also tend to be on the crazy side of audiophile.  I sat in the MBL room and had to listen to some terribly recorded crap.  I realize it isn't a newsflash, but a good percentage of show attendees are crazy, deluded, and stupid, or some combination of the three.  I think that the percentage might increase for the reviewers......

Most of the time at shows, I am listening to stuff that is way outside my price range.  Even in the badly setup rooms, I can get a feel for what designs I tend to prefer.  Time alignment seems to make a difference (coaxial are time aligned).  So does having the tweeter and midrange in the same phase (Lipinski being an exception, somehow). 

If you do go out and audition speakers, bring a test recording with some pink noise, and a channel test.  I have found bi-wired speakers with the lower range wired in opposite polarities, and left and right reversed when demoing at very reputable stores. 

Easy way to drive people out of a room... I ask them to play "Ghosts" from my Albert Ayler CD, then I get the sweet spot chair 

But seeing how a speaker handles terribly recorded music is a good test to see how they'll adapt.

I found that to be ridiculously true! I always have a couple of tracks with loads of siblance or grain in the voices to tell the harsh equipment from the non harsh ones apart. To those that managed to get a good experience out of the MBL rooms, how do you think they perform?

As close to absolute neutrality, versatile (can go from bestial black metal to audiophile quality jazz and swing then to breakbeat), extension in both directions, all while trying to stay in a lower-middle class budget.