This thing does exactly what it was designed to do give great hits. depending on the coil your using be sure to play with the settings and get it tuned in for your liking. I definitely recommend one
they can either give you a very flavorful hit if you go low watt of a huge rip if you crank it up.
I have found that short, strong hits (higher watts) work the best for me, no coughing.
Just make sure you load just what you are going to use, don't overload it or you may have some plugging in the airflow.
BTW: about all the reclaim that eventually forms despite your best efforts, I scrape it off and hit it again. Its a great, very relaxed high, and very little waste.