I've been using the arctic for about a month and a half now. I'm on the same coil. I've probably filled it 30 or 40 times (not saying a ton given the capacity) and the coil is still fantastic. No dry hits or anything. Major con is the capacity, its really just terrible. I run it at 68 watts and it'll get me through half a day, but I know alot of people can run it dry in a half hour. It's also not that difficult to fill, any bottle with a point on it will get the job done no sweat.
With all that said, I do have a Freemax Starre on the way, because it seems like a much nicer tank. Yes easier to fill, and YES on capacity. Personally I think it looks nicer too, even though slightly taller. I ordered a Dimitri dual 18650 to go with it for like 26 bucks on fasttech as well.
To the Arctics credit, the coils truly are frickin champs. I was driving the forklift at work and it was on my sigeli at 68 watts, and I accidentally forgot to lock the sigeli. Needless to say, the fire button was activated, and I noticed my pocket getting really hot, and the sigeli gave me an "overheated message."
THATS THE SAME COIL I'M USING TODAY!!!
It didn't go dry, it just leaked juice all over my pocket. Bad for me because I pretty much ran out of juice for the rest of the day, but awesome for the arctic coil for holding up to such abuse. I don't see any reason why the Freemax coils would be any less stellar than the arctic coils.