I m getting a piano and cant decide between a Yamaha U1 or a kawai K3 or K5(silent series for all). Any advice? i've tried on the yamaha U1, but find the sound too bright for me, maybe cos all these years ive been using a Kawai. Was told tat a Kawai K3 is comparable to Yamaha U1 is tis true? or should I get a K5?