Well, I'm now a happy Bitmain customer.
I placed my order on the 23rd, so shipping took 5 days to Canada. The units were very clean compared to some that have been posted here. A bit of excess TIM here and there, but nothing major. There was a tiny amount of dust, which I'd compare to either 2 weeks of running in a pretty clean environment, or a day or 2 running in a dirty environment.
I bolted a second 130CFM 12CM on each unit (push/pull obviously) and fired them up. I messed up configuring the static IP on the first machine, and had to reset it to factory to regain access. Once that was done, both units were up and hashing within 10 minutes with static IPs.
Next step was overclocking, which took a grand total of 5 minutes per unit. Both are now running at 400MHz.
Power requirements for overclocking seem to be pretty exaggerated from what I've read while waiting for the miners to arrive. For initial setup (before transferring to my 240v server PSU powered "farm") I'm powering both units on a single Corsair AX860i running on 120v (PSU is 91% efficient @120v) with a killawatt meter. Running stock (350MHz) both miners consumed a total of 730w at the wall, or 332w DC each accounting for PSU inefficiency. Consumption @ 400MHz = 825w at the wall, or 375w DC each.
I forgot to take notes for stock settings, but one unit runs a little cooler than the other. The warmer unit has a higher HW error rate than the other by a pretty decent margin, but I don't think temps are the reason. Overclocked unit 1 runs at 41c/41c 2400RPM, while unit 2 runs at 41c/43c 2600RPM.
Ambient temperature where the miners are right now is 26c. They'll soon be happy in my cold Canadian garage.
So far I only have one regret... Only ordering 2.
Will order near the date as I think you might update price come 8th Feb 
. With no good way of removing the bad PSU, I had to cut the power lines and route them to another PSU ziptied to the crate.
