I owned both the Sonata and the Platinum QP GMT... They were too close, and sold the QP GMT.
I have the intuition that I will get much less tired of the first Sonata than of the new one, too.
But there are many intresting elements, on the new one, such a the comfort of wear, which is much better on the latest Sonata.
They play, if I may say, different partitions. One, the latst, is much more agressive, while the former was more romantic, less " technical ".
Interesting.
One thing is sure, I am not able to love the Ti / Gold version...
While I have some appreciation for the Ti / Ceramic.
It will be a strong conversation piece, I feel!
Best,
Nicolas