By this do you mean that amarok does not work at all on your system?
It crashes as soon as I start it. I haven't filed a bug report about it yet, since first I need to understand if it is a problem with my system or with Jessie. Would be useful if anyone else using Jessie could add their feedback as well.
I don't see it as a replacement for the default theme; only as another theme available in the list. The default theme is already good.
I also like the default theme better. But we can add the new theme as an additional one, no problem.
Cheers Michele