Well, my opinion should be obvious to anyone that's seen my NGD posts of late - I've bought 2 this month. Never have I felt such a strong urge to own multiples of the same guitar, and the price made it a no-brainer to grab a second, in case it should go up in the future. It's by far the most versatile guitar I've ever played - there's just a stunning array of tones available out of one guitar.
Neck concerns are valid - if you don't like a neck, you don't like a neck. I love the thin T-60 neck now that I'm used to it.
As for heavy, both of mine are under 9 pounds.
Brak, I do think you got one thing inaccurate in the first post - the painted ones are Poplar, not Alder, according to the good folks at the T-60 forum. Never had a Poplar axe before, but my Black T-60 sounds mighty fine...