1.2 militnewtons if thrust certainly ins;t going to get you anywhere fast.
I suppose it's relative to what you want. I wonder how fast Voyager 1 would be moving by now if it had 1.2 millinewtons of thrust going all this time. I suspect the cumulative effect would be significant.
That was one result on one test rig. Others have gotten quite a bit better results. Further, ALL of these are just “proof of concept” rigs.
Scale up both power and size, you’ll get a similar boost in apparent thrust.
Shawyer supposedly has a deal with Gilo Industries to produce a flying car.
http://giloindustriesgroup.com/
Take that for what you will...