Hey BMT,
I have never used the Brunton Raptor stove but I do use the similar style Snow Peak Giga and I am happy with it.
There are 3 reviews on the Brunton Raptor Stove on the Backpackgeartest site found here:
http://www.backpackgeartest.org/reviews/Cook%20Gear/Stoves/Brunton%20Raptor%20Stove/They all give the Raptor a great recommendation, sounds like a quality unit.
The Raptor stove will suffer from the same problem as all butane based cannister stoves, they do not work well in the cold and you cannot top-up the cannisters before going on a trip, you either buy a new full one or carry a spare. There are new fuel mixtures (propane, iso-butane) that address the cold proformance problem and there are many backpacking sites on the web that explain/discuss this in detail.
I use cannister stoves in the spring/summer/fall and old style liquid fuel stoves (Coleman) in the winter.
Mike