Too late I know, but I have had their preamp for about 4 years now, and it has been a great find.
I have compared it against a decent amount of preamps and it is tough to beat, especially a the current asking price. At that price it is probably the best deal going, assuming you don't want lots of bells and whistles.
The phono stage is quite good as well.
Someday soon I will be upgrading amps, and the the 845 or 300B amps form NAF are something I will have to amke sure I get into to my room to ehar before going any other direction.
NAF themselves have been pretty easy to work with over the years.