I've owned the Q3s since they were first issued, mine replaced the pair of V3s I owned before. I cannot comment on the Focal speakers I'm afraid but here are some thoughts about how to get the best from the Magicos.
firstly they deserve the best amplification and lots of it. My dealer claimed to get good results from 60W amps but when I tried it did not work. I use VTL MB450 III and the speakers delight in the power and control. Often matched with big solid state amps but in my experience this can sound edgy. On this point I have no issues with the tweeters, I use slight toe in with the speakers very wide apart and listen in the near field. My room is also well treated, as I have gotten reflections under control I've been able to dial back other high frequency damping so it may be that the Q3 tweeter can excite an under controlled room. The lack of any port makes them easy to locate. Mine are 18" from the rear wall and they work very well even in a shallow room like mine.
in conclusion I can highly recommend the Q3s but only in the context of top quality amps and sources, I suspect these speakers would be unforgiving of anything less and would be ruthless in exposing downstream weakness, no soft and cuddly here!