Yes, I do - and it does work. You can spend more or less as much as you want and you'll get what you pay for. I went for the cheap as chips option (<£100) with an old Gen I tube (same as the IWS - ARRSEpedia - great for the "old & bold" memories of green specks and that whining noise ) which, with an IR illuminator to light up their eyes, takes me out to 50-75m for rabbit. On a slightly windy night and not too much moon you can get pretty close before they see you.
I use the NV as an either/or with my day optics - using a quick-release scope mount. The downside of this is that you can lose zero, I get round this because I have a laser mounted under the barrel which can be used as a check on the zero in between the two sets of sights.