First looks at the ESXi 5.5 hypervisor now available

I'll be testing out some of the new features discussed here

http://TinkerTry.com/vmware-vsphere-5-5-announced-with-general-availability-likely-the-week-of-september-9-2013

soon, with some initial video of the install of 5.5 (build 1266856) already up, discussed here

http://TinkerTry.com/first-look-at-vmware-esxi-5-5-installation-on-a-flash-drive-then-vsphere-client-install

I've been keen on getting past that 2TB virtual drive boundary for years, this is a big step forward. What new feature(s) excite you the most?