Hello and Happy new year!
First over all, thanks for the great job done. I'm JR MC user since it's 16 ver for Windows. I like listen music in quality and i was missing JR MC when moved for Mac. I'm truly happy to see it now for Mac natively now.
But what makes me sad it's GUI. Windows version never has been "beautiful"/"handsome" but Windows programs don't have unity in GUIs when Mac apps does (stylish look is a part of what Apple's customers do pay for, after all) so for Mac users it looks - sorry - scaring ugly. Yes, i know that here's changeable skins but i don't want to play with skins: as end-user I want just to install and run JR MC and have native nice look "from box" as with all other apps.
Add video support (especially, for mkv containers). Here's not so many good universal video players for Mac, so it would to be extremely useful. Myself i would highly prefer to have JR MC for music and video both.