Well, i have been using the pen since 6 months now and all i can say is hands down its amazing and comfortable as fuck buddy.It feels you are tattooing with a sharpie literally. Of course It needs a little learning curve, when you get used to it you'll absolutely love it. I recently ordered the inkjecta flite nano elite it's amazing and powerful but for me the pen is the best machine on the market by far
I have been using the Pen for quite some time now and I'm very happy with it. like any machine you need some time to adapt to it, however, I have used neotat, and stigmas for a long while and it has a similar feel to it. The cartridges take a bit of getting use to. but I much prefer them to the traditional needle and tubes.