Rogers here, I'm 95/mo and wife is 90/mo shared plan with the same deal as you, but we share 5gb data per month. I've found service isn't very good when traveling in Saskatchewan, and quite terrible when I'm in the fields and valleys hunting in Alberta. Feel like that's kind of just to be expected.
Prepay plans really seem to be the best way to go if you're not in it for the hardware, like you mentioned :)

Good post, hot topic.