I had Eggleston Andra II's (upgraded from I's). a very forgiving speaker IMHO.
The JM Lab speaker is made to an even higher build quality, but it "may" have more issues in getting the optimum set-up. also, you are comparing the esotar tweeter from dynaudio, a silk dome with uncommonly good reviews, with the beryllium tweeter in the Nova, which is super-high-tech. my "guess" is that the Nova is the better deal, while the Andra sounds utterly natural on piano, strings, and you can place it in a number of locations in a wide variety of rooms. i did hear a JM lab mezzo-utopia years ago and was very impressed, but the Nova-BE is a different speaker altogether, one i never got to hear personally. one other factor might be the BASS extension- the Egg's go below 20Hz with ease. some early reviews of JM Lab speakers mention less-than-adequate VERY-LOW bass extension. If you listen to pipe organ music a great deal this is another factor to consider.
