Just got the goot iron today and built a pack with it. This iron is probably the best iron i've ever seen! Press the little button and after a few seconds the whole iron is cherry red and it takes 2 seconds to fix a bar on a cell. The tip seems small but actually does an excellent job and at the heat it kicks out, a wider tip wouldn't really make much of a difference.
Other than slightly melting my deans jig and some of the cell shrink wrap, i give the goot 2 thumbs up. I'll post some pics later if anyone is interested.