Our mining software worked as well as we said it would.
The cloud hashrate allocation software took 2.5 weeks to write instead of 2. We will compensate our customers liberally for that shortfall.
Is your mining software still worth $750,000+ on the low end?
I had no idea how fast other people's software was going to be. I only knew how fast other people's software was, and how fast our software was. I also had no idea what the ZEC exchange rate was going to be. Back in late September/early October, the forecast ZEC price was between $14 (according to the Founder's Reward effective price) and $40 (according to the Bitmex futures). The best competing closed-source equihash solver had about 1/3 of our performance. That value estimate was based on the best data available at the time. The data have changed, so the current value is different from what I forecast. As the ZEC futures price rose, the incentive to write mining software also rose. Instead of us having the fastest software for another two months (including one month after launch), we only had the fastest software for one month (plus or minus a few days at launch).
We received three firm offers for our mining software from large (10,000+ GPU) private farms in the $100,000-$250,000 range. We turned them down and decided to take our chances with our own mining operation and with cloud mining.
If you think the math I used at the time based on the information that was available at the time was incorrect, that is a reasonable argument. If you are complaining because you think the math I used at the time was incorrect based on the information that is available now, then I think you're lame.