So I went and bought one and used it up in the hills the other night (~20°F). Kinda cool all unitized and all. It'll be a great hanging stove. Seemed similar in cool weather performance to the old Pocket Rocket. Pot's OK if you're not in a hurry melting snow, but sucks if you're used to a 2 liter pot.
Then I took it home and did a battle of the stoves boiling ice blocks. Attached are the results in an Excel spreadsheet.
Basically, in spite of the better efficiency of canister stoves, I'm taking the old tried and true Whisperlight up to Alaska again.
Blaze on,
Mark
559818-Stovecomparisons.xls