I use Groove all the time. Don't know why it gets slated so much. Haven't noticed any real changes with this big update. I find Groove 95% reliable. It clean and simple to use. Tried others for comparison but always end up using Groove.
The radio starts songs about 1000x's faster..used to always sit and hang for a bit. Also "now playing" no longer does ken burns type stuff....just a static pic and a stable and cool CPU....kudos. I never liked CAD fighting for resources with groove but I always like my SB to show what I am listening too.
So far so good....next....car integration...we'll see...it has been a Long Ride