change 2 unit last weekend. put at front.
but i found out, the noise almost same with my 50k km MC5 tyre...just drive out from shop to home also can heard the humming noise....

does tyre also have break in period? 

*my previous MC5 1st drive; barely can heard the tyre noise...the only thing i heard is small stones rolling up the fender... 

honestly.... (imo)
i think this tyre is what as its advertised; u in plane.   
u run on bumps or yellow cross line...it gave u comfort. softly feel the bumps. but noise is still there....
just like u sit on a plane..got smooth ride...but the engine is still loud. 

so comfort is not silent.

*after 2 weeks...i changed    all those to achilles atr spt2.