I couldn't access the actual comments without logging on, which I didn't do.
My first reaction is why? It seems quite a bit complex and costly compared to a Freshroast8 which I can buy for $80. plus shipping and get 4 pounds of beans to boot.
I can start roasting with 15 min. of delivery.
I'm not a computer geek, so there is no appeal to go through the learning curve needed to set this up.
The one advantage I can see is the "very repeatable roasts". It does take a constant vigil to roast the same beans to the same degree everytime. And a longer roast time is actually better as far as taste goes. The thing is, I like roasting beans to different degrees as I find the best roast for my tastes, but sometimes I deliberately vary the length of roast and mix them together. This way I get the advantage of the difference in the varying lengths of roast time which brings out different flavor profiles for the same beans.