I have been using Thread Art since I got my
Brother NV1000 machine in Dec. 2006.
For the most part it has been good thread I
do have a couple colors that for some reason
my machine just does not like, out of 180
spools thats not to bad (at least I don't think).
Floriani is a good brand also I have about 8-12
different colors.
I got a 24 spool set of Maderia rayon when I bought
the machine (as a Christmas gift from the store) other
than it being rayon I do not see anything to "special"
about the brand other than the higher cost.