I grabbed the 499 one. Gracious Home for those interested. At 599 you're better off with the Calima at 649.
I have mostly HW floors with one room a low pile w-to-w wool. The head for the Fresh Air is fine. If I need to I can get the power head for about 125. The first time I used it on the wood floor the suction was so strong it made the head difficult to move.
The headlamp is boss as is the extended crevice tool. Big plans for that baby.