They got me high for a few days, but I adjusted to taking one every four hours. Now they just keep me in a very relaxed state; kind of more emotional than a physical feeling, if that makes sense. I'll still get high if I take more than one, but my goal is to obtain as much pain relief as possible with as little constant high as possible. (I have to be medicated round the clock.)
I don't know how well these work for acute pain, as I take them on a schedule. All I know is that all aspects of my chronic pain are decreased in general since I started taking these regularly. Not gone, but much more tolerable and manageable. If brownies have helped you, then these should too. It should just be a matter of figuring out what dose works for you.