Is there a distributor here in the states? While the price with coupons is decent, the shipping makes it a no sale. YMMV, but the shipping doesn't work for me on the S3+, C1 or the S4.
Do yourself a favor and just stick with the Spondoolies-Tech SP20. They have some great deals going right now and include shipping (including a Group Buy going on right now, $500 for 1.7TH shipped i believe!)
If Tech support is needed (not likely) they will actually help you...try getting support from bitmain -- they make it such a pain that you want to give up.