Koodo uses WCDMA frequencies 850 and 1900 so this phone will work but not in all areas since it only supports the one frequency and not the other. I would not recommend buying this phone to use on Koodo's network.
why choose this phone you ask. the price. it does everything a high end phone offers at a reasonable price. if this phone got wrecked or had an issue it could be discarded. according to my friends its as good as any name brand phone.