I find reviews mostly meaningless. Handling is primarily determined by geometry, wheels, tires and air pressure. I would love to read reviews that have been done blindfolded, without the reviewer knowing what he or she is riding. But it's not happening for obvious reasons. Also, everyone seems to be able to give reviews about wheels and frames and whatnot, no matter how technically proficient he or she is. Today's disc bikes are so balanced and differences in handling are so small. I had a look at the geometry chart of the SC-R48D and I was already pretty sure I knew what I could expect in terms of handling. Of course, I may be wrong but then I'm the first to acknowledge that. To be perfectly honest, the main driver why I ordered it is because of its simple look, round seatpost, external cables (I have plenty integrated bikes), light weight and EPS molding technology.

BTW, the frame head tube is tapered 1 1/8” - 1 1/2”. I thought I read here that the upper section is 1 1/2” which it isn't.

I had a pretty bad experience with Velobuild. I would assume, that the other companys are more professional, have a better customer support etc. I would go for the geo you like the most, after that definately the best looking frame.
What size are you looking for?

Haven't bought anything from WorksWell.  Speeder 2 sets of wheels - both good.

See this topic: http://chinertown.com/index.php/topic,3597.0.html

Currently about to purchase the 48V which is the rim brake model myself along with a38mm wheelset. Pretty smooth so far, planning on using paypal.