After having it for a little over and week, the OBS. T-VTC. is my new go to. It holds 6 ml, top fill, air and juice control, and has never leaked. a drop, This thing has good flavor, and makes nice clouds, what's not to like!
I'm right there with ya, had my OBS for a little over 3 weeks on the original coil and it is the tank I take with me on the road. Still love my Arctic but that is only at home or at a friends house. The OBS has replaced the SubTank Plus V2 when I am on the move, the OBS is far superior in many ways and only holds 1 ml less juice.