The 1lb green canisters (Coleman) are propane, these stove uses the smaller isobutane / propane / butane mix canisters. The iso canisters are usually available in 220 gram, but can also be found in 450 gram format (450 grams = 1lb). (MSR offers 4oz, 8 oz and 16 oz) The threads for the green Coleman type canisters are not the same as the isobutane canisters. The iso cannisters are lighter than the propane canisters and thus are preferred for backpacking (garbage in, garbage out). The propane stoves are usually much larger than the iso stoves. If you want a stove for the Bug Out Bag that's light and easy to operate, go with the iso butane. If you are car camping and are concerned about cost, go with propane. If you want the cheapest fuel and don't mind a little fuss, go with kerosene (messy, requires stove maintenance) or naphta (Coleman liquid fuel) (clean burning, requires some stove maintenance).
The iso stoves are light, inexpensive, almost maintenance free and easy to operate.
The technotrail should work fine with 1.5L pots (2-3 persons). With smaller pots, some of the heat may escape via the sides.
Great prices at the OneShotTactical store on the Primus gear. Add a Hennesy hammock and you can survive almost anywhere!