Dsmparts.com rotors, any good?

[Jovan Ceklaj]

I was looking into getting brake rotors and I came across this.
http://www.dsmparts.com/brembo_rotors_1g.htm
Price wise it seems like a good deal for Brembos, but I'm a little hesitant about the fact that at the top it says they were blanks and they machined them.  Can anyone see a reason why not to get them?

Also I heard that dsmparts.com isn't the best to deal with, but I've never dealt firsthand with them.  Anyone know?

Jovan