Just installed it from the store on my table, the update should be called Windows Infinity point one as it took hours to download and longer to install on my poor atom tablet. On the plus side IE11 seems to handle vbulitins dodgy js much better in metro mode.
Enter even works now.
It also puts a WiFi strength meter on the logon screen, have only been messing with it for about 15 min so I'm sure there is more. I wouldn't mind some better feedback from the store app, a percentage of the download that was complete instead of a nondescript progress bar would be quite an upgrade.
I am hoping the management has improved a bunch, looking forward to the start screen being customisable with an xml and GPO, hopefully the store apps are a bit more management friendly too.