I have both an A2 and War Machine (another War Machine coming week 2). What would you like to know?
Well... for starters:
1) Is the A2 power usage what is advertised? (about 7-8 watts/Mh)
2) Why buy one over the other? If I did the math right, the cost difference is high between A2 and A1, with something like a year or two ROI based on power cost.
3) Given a multi-year ROI due to cost difference, were you comfortable with the 3 month warranty of the A2 (I think that is what is was, please correct if I'm not remembering correctly)
Cassey
1) I don't know for certain. However all reports I have seen point to the advertised wattage being accurate.
2) Speaking honestly, I would purchase the A2 over another War Machine right now. But ONLY because of the bumps and issues GAW has had getting them going right. Once the War Machine is stable and the bugs are worked out, it will be a better product (and is cheaper $/Mh) if you are hosted. If you take ownership of the miners and host them yourself, A2 is probably a bit better only because of power consumption. I don't give 2 winks about power consumption because mine are hosted (and I'm a founder so they will ALWAYS be hosted).
3) Three month warranty for the A2 is fine. It seems pretty standard. Gridseed was only 30 or 60 days I believe. By the time the 90 day warranty is up on the A2, I will have already moved up to a bigger machine and sold it.