I've been playing with one a bit, and it's pretty decent so far. I bought the first round, and had to file the center pin down quite a bit. Never fired the head before re-wicking it with 2 pieces of cotton yarn, and making sure that I didn't get any burnt gasket taste (can't stand even the thought of that.) I think 2 pieces of yarn was a bit much, though. I also did some gauze that was too fat... I'll have to try some stretched bunny balls, next.
Anyway, I twisted a strand of no-resistance wire on each side of the resistance wire the 2 times that I rebuilt it, and even after clipping most of the twisted tails off of each side, it was devilishly difficult to situate the wire in there without it shorting to the cup around it. I have to agree on the sentiment that ceramic would be nicer, Gummy.
I suppose that I'll try a different method for the legs, like the doubled legs mentioned above. I haven't seen any mention of how or whether they fixed that issue with the new v2.5 heads. I have seen a pic that showed some sort of insulator inside of the cup, but it looked suspiciously like glass fiber mesh. I suppose it could be ceramic, but I can't tell.
That did make me wonder about lining the inside of the cup with some cotton fabric with a couple of slits for the wick to go through, to prevent metal-on-metal contact. I think I'd have issues with it staying in place while pushing the coil and wick in. I also think it may cause juice to pool in the cup. I'll have to think on that some more.