Spell Haste is not currently mapping over from Armory to the Signature Generator (example, my character has 253 spell haste per armory, but shows 0 on the sig). It is, however, showing the full amount when I configure it to show Main Hand Haste Rating or Ranged Haste Rating (I didn't try Offhand), so I suspect this will be a very simple bug to fix.

Thanks, and happy holidays!